#2F5DFE
Closest named color: Bright Blue (#0165FC). oklch(55.4% 0.243 265.9), rgb(47, 93, 254).
Aa
White text reads best on this color (5.09:1).
About this color
#2F5DFE is a medium-dark, vivid blue. In OKLCH its lightness is 55%, its chroma 0.243 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Bright Blue (#0165FC), ΔE 0.022 away. White text reads best on it, at 5.09:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.243) |
| Temperature | cool |
| Nearest name | Bright Blue (#0165FC) |
| Black text | 4.11:1 |
| White text | 5.09:1 |
Values
| HEX | #2F5DFE |
| RGB | rgb(47, 93, 254) |
| HSL | hsl(227, 99%, 59%) |
| OKLCH | oklch(55.4% 0.243 265.9) |
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 #2F5DFE | 5.09:1 | AA | Lc -79.7 | Fine for body text |
| Black text on #2F5DFE | 4.11:1 | AA large text | Lc 29.8 | Dividers and decoration only |
| #2F5DFE text on white | 5.09:1 | AA | Lc 74.3 | Content text, not long reading |
| #2F5DFE text on black | 4.11:1 | AA large text | Lc -27.4 | 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 600.
-
Step 50
50
#F1F5FF
oklch(97% 0.014 268.5)
-
Step 100
100
#E0EAFF
oklch(93.6% 0.03 265.3)
-
Step 200
200
#C8D9FF
oklch(88.5% 0.056 266.2)
-
Step 300
300
#A4C0FF
oklch(81% 0.095 265.8)
-
Step 400
400
#739CFF
oklch(70.7% 0.152 265.7)
-
Step 500
500
#507FFF
oklch(63.1% 0.197 265.8)
-
Step 600
600 (this color)
#2F5DFE
oklch(55.4% 0.243 265.9)
-
Step 700
700
#244BDE
oklch(49.1% 0.227 266)
-
Step 800
800
#1E3FB3
oklch(42.6% 0.187 265.9)
-
Step 900
900
#1C388E
oklch(37.8% 0.147 265.8)
-
Step 950
950
#112253
oklch(27.1% 0.092 265.9)
#2F5DFE 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) | #0078FF | 0.060 |
| Deuteranopia (no green cones) | #0064FB | 0.022 |
| Tritanopia (no blue cones) | #0088A5 | 0.188 |
| Achromatopsia (no color) | #6E6E6E | 0.244 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F5DFE
#2F5DFE
oklch(55.4% 0.243 265.9)
- #906D00
#906D00
oklch(55.4% 0.113 86.3)
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 #2F5DFE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bright Blue #0165FC ΔE 0.022
- Azul #1D5DEC ΔE 0.030
- Neon Blue #4361EE ΔE 0.032
- Electric Blue #0652FF ΔE 0.034
- Cerulean Blue #056EEE ΔE 0.046
- Royal Blue #4169E1 ΔE 0.056
- Warm Blue #4B57DB ΔE 0.060
- Clear Blue #247AFD ΔE 0.066
Use #2F5DFE 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.