Bright Blue #0165FC
Bright Blue is a medium-dark, vivid blue with hex code #0165FC and RGB rgb(1, 101, 252).
Aa
White text reads best on this color (4.91:1).
About this color
#0165FC is a medium-dark, vivid blue. In OKLCH its lightness is 56%, its chroma 0.238 and its hue 261°. Its hue sits on the cool side of the wheel. It is the named color Bright Blue. White text reads best on it, at 4.91:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.238) |
| Temperature | cool |
| Nearest name | Bright Blue |
| Black text | 4.26:1 |
| White text | 4.91:1 |
Colors that go with Bright Blue
Matches found by rotating Bright Blue around the OKLCH hue wheel, each labelled with the closest name in our list.
Complementary
The opposite hue (180°).
Analogous
Neighbouring hues, 30° either side.
Triadic
Three hues spaced 120° apart.
Color palettes with Bright Blue
Curated color palettes that contain a color within ΔE 0.06 (OKLab) of Bright Blue, closest first.
Similar named colors
The eight named colors closest to Bright Blue, with their ΔE distance.
- Azul #1D5DEC ΔE 0.030
- Cerulean Blue #056EEE ΔE 0.030
- Electric Blue #0652FF ΔE 0.040
- Neon Blue #4361EE ΔE 0.040
- Clear Blue #247AFD ΔE 0.054
- Royal Blue #4169E1 ΔE 0.054
- Warm Blue #4B57DB ΔE 0.070
- Vibrant Blue #0339F8 ΔE 0.086
More about Bright Blue
How to make Bright Blue
A starting recipe from common paint colors, found with a spectral paint model (the color mixer’s paint mode). Real pigments vary, so mix a small test batch and adjust.
- 3 parts blue
- 1 part white
Recipe result: #2B64C4, a difference of ΔE 0.087 from Bright Blue. Bright Blue is more vivid than these paints can mix, so start from a ready-made blue paint and adjust it.
Codes for Bright Blue in every format
| HEX | #0165FC |
| RGB | rgb(1, 101, 252) |
| HSL | hsl(216, 99%, 50%) |
| OKLCH | oklch(55.9% 0.238 260.8) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #0165FC | 4.91:1 | AA | Lc -78.4 | Fine for body text |
| Black text on #0165FC | 4.26:1 | AA large text | Lc 31.1 | Non-text elements, placeholder text |
| #0165FC text on white | 4.91:1 | AA | Lc 73.0 | Content text, not long reading |
| #0165FC text on black | 4.26:1 | AA large text | Lc -28.7 | Dividers and decoration only |
Shades and tints of Bright Blue
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 600.
-
Step 50
50
#F0F6FF
oklch(97.1% 0.014 258.3)
-
Step 100
100
#DEEBFF
oklch(93.6% 0.031 258.9)
-
Step 200
200
#C4DAFF
oklch(88.4% 0.057 260.8)
-
Step 300
300
#9DC2FF
oklch(81% 0.096 260.2)
-
Step 400
400
#689FFF
oklch(70.7% 0.153 260.8)
-
Step 500
500
#3C83FF
oklch(63.2% 0.198 260.7)
-
Step 600
600 (this color)
#0165FC
oklch(55.9% 0.238 260.8)
-
Step 700
700
#0054D5
oklch(49.2% 0.21 260.8)
-
Step 800
800
#0044B0
oklch(42.7% 0.182 260.8)
-
Step 900
900
#0C3B8C
oklch(37.7% 0.144 260.9)
-
Step 950
950
#092352
oklch(26.9% 0.092 261.1)
Bright Blue with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #007BFF | 0.053 |
| Deuteranopia (no green cones) | #0066F9 | 0.005 |
| Tritanopia (no blue cones) | #008DA7 | 0.181 |
| Achromatopsia (no color) | #707070 | 0.239 |
Use Bright Blue in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.