#285ED2
Closest named color: Warm Blue (#4B57DB). oklch(51.7% 0.188 262.8), rgb(40, 94, 210).
Aa
White text reads best on this color (5.79:1).
About this color
#285ED2 is a medium-dark, vivid blue. In OKLCH its lightness is 52%, its chroma 0.188 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.039 away. White text reads best on it, at 5.79:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.188) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.62:1 |
| White text | 5.79:1 |
Values
| HEX | #285ED2 |
| RGB | rgb(40, 94, 210) |
| HSL | hsl(221, 68%, 49%) |
| OKLCH | oklch(51.7% 0.188 262.8) |
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 #285ED2 | 5.79:1 | AA | Lc -83.7 | Fine for body text |
| Black text on #285ED2 | 3.62:1 | AA large text | Lc 25.7 | Dividers and decoration only |
| #285ED2 text on white | 5.79:1 | AA | Lc 78.4 | Fine for body text |
| #285ED2 text on black | 3.62:1 | AA large text | Lc -23.4 | 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 700.
-
Step 50
50
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E1EAFC
oklch(93.6% 0.026 264.4)
-
Step 200
200
#C8DAFC
oklch(88.6% 0.051 263.2)
-
Step 300
300
#A1C1FC
oklch(80.9% 0.091 262.4)
-
Step 400
400
#6F9EFB
oklch(70.7% 0.146 262.9)
-
Step 500
500
#4982F8
oklch(63% 0.187 262.8)
-
Step 600
600
#2D68E7
oklch(55.5% 0.203 262.8)
-
Step 700
700 (this color)
#285ED2
oklch(51.7% 0.188 262.8)
-
Step 800
800
#1C47A3
oklch(42.7% 0.157 262.8)
-
Step 900
900
#1C3D81
oklch(37.7% 0.121 262.6)
-
Step 950
950
#11244B
oklch(26.9% 0.077 262.8)
#285ED2 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) | #006DD6 | 0.037 |
| Deuteranopia (no green cones) | #005ED0 | 0.017 |
| Tritanopia (no blue cones) | #007B8F | 0.146 |
| Achromatopsia (no color) | #656565 | 0.189 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #285ED2
#285ED2
oklch(51.7% 0.188 262.8)
- #866100
#866100
oklch(51.7% 0.106 82.4)
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 #285ED2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.039
- Azul #1D5DEC ΔE 0.040
- Royal Blue #4169E1 ΔE 0.045
- Neon Blue #4361EE ΔE 0.052
- Cerulean Blue #056EEE ΔE 0.056
- Mid Blue #276AB3 ΔE 0.061
- Bright Blue #0165FC ΔE 0.066
- Iris #6258C4 ΔE 0.069
Use #285ED2 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.