#015FD7
Closest named color: Azul (#1D5DEC). oklch(51.6% 0.199 259), rgb(1, 95, 215).
Aa
White text reads best on this color (5.80:1).
About this color
#015FD7 is a medium-dark, vivid blue. In OKLCH its lightness is 52%, its chroma 0.199 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Azul (#1D5DEC), ΔE 0.034 away. White text reads best on it, at 5.80:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.199) |
| Temperature | cool |
| Nearest name | Azul (#1D5DEC) |
| Black text | 3.61:1 |
| White text | 5.80:1 |
Values
| HEX | #015FD7 |
| RGB | rgb(1, 95, 215) |
| HSL | hsl(214, 99%, 42%) |
| OKLCH | oklch(51.6% 0.199 259) |
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 #015FD7 | 5.80:1 | AA | Lc -83.4 | Fine for body text |
| Black text on #015FD7 | 3.61:1 | AA large text | Lc 26.0 | Dividers and decoration only |
| #015FD7 text on white | 5.80:1 | AA | Lc 78.1 | Fine for body text |
| #015FD7 text on black | 3.61:1 | AA large text | Lc -23.7 | Dividers and decoration only |
Tints and shades
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 700.
-
Step 50
50
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DFEBFD
oklch(93.6% 0.028 258.4)
-
Step 200
200
#C4DBFD
oklch(88.5% 0.053 258)
-
Step 300
300
#9BC2FF
oklch(80.8% 0.097 259.2)
-
Step 400
400
#63A0FF
oklch(70.7% 0.154 259)
-
Step 500
500
#3484FE
oklch(63.1% 0.198 259)
-
Step 600
600
#026AED
oklch(55.6% 0.214 258.9)
-
Step 700
700 (this color)
#015FD7
oklch(51.6% 0.199 259)
-
Step 800
800
#0148A7
oklch(42.7% 0.165 259.1)
-
Step 900
900
#0E3E84
oklch(37.8% 0.128 258.8)
-
Step 950
950
#0A254D
oklch(27% 0.081 258.5)
#015FD7 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) | #006EDB | 0.038 |
| Deuteranopia (no green cones) | #005DD5 | 0.006 |
| Tritanopia (no blue cones) | #007D92 | 0.149 |
| Achromatopsia (no color) | #656565 | 0.200 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #015FD7
#015FD7
oklch(51.6% 0.199 259)
- #885F00
#885F00
oklch(51.5% 0.107 79.2)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #015FD7, closest first.
No curated palette has a color within ΔE 0.04 of #015FD7.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Azul #1D5DEC ΔE 0.034
- Cerulean Blue #056EEE ΔE 0.051
- Warm Blue #4B57DB ΔE 0.051
- Royal Blue #4169E1 ΔE 0.052
- Neon Blue #4361EE ΔE 0.056
- Bright Blue #0165FC ΔE 0.058
- Electric Blue #0652FF ΔE 0.066
- Mid Blue #276AB3 ΔE 0.068
Use #015FD7 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.