#285AD3
Closest named color: Warm Blue (#4B57DB). oklch(51% 0.194 263.8), rgb(40, 90, 211).
Aa
White text reads best on this color (6.01:1).
About this color
#285AD3 is a medium-dark, vivid blue. In OKLCH its lightness is 51%, its chroma 0.194 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.037 away. White text reads best on it, at 6.01:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.194) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.49:1 |
| White text | 6.01:1 |
Values
| HEX | #285AD3 |
| RGB | rgb(40, 90, 211) |
| HSL | hsl(222, 68%, 49%) |
| OKLCH | oklch(51% 0.194 263.8) |
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 #285AD3 | 6.01:1 | AA | Lc -84.6 | Fine for body text |
| Black text on #285AD3 | 3.49:1 | AA large text | Lc 24.7 | Dividers and decoration only |
| #285AD3 text on white | 6.01:1 | AA | Lc 79.4 | Fine for body text |
| #285AD3 text on black | 3.49:1 | AA large text | Lc -22.4 | 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
#E1EAFD
oklch(93.6% 0.028 265.4)
-
Step 200
200
#C8DAFD
oklch(88.6% 0.052 263.7)
-
Step 300
300
#A2C0FE
oklch(80.8% 0.094 264.4)
-
Step 400
400
#6F9DFE
oklch(70.6% 0.151 263.8)
-
Step 500
500
#4B81FC
oklch(63.1% 0.192 263.9)
-
Step 600
600
#2F66EB
oklch(55.5% 0.21 263.8)
-
Step 700
700 (this color)
#285AD3
oklch(51% 0.194 263.8)
-
Step 800
800
#1E46A5
oklch(42.7% 0.16 263.7)
-
Step 900
900
#1D3C83
oklch(37.7% 0.125 263.7)
-
Step 950
950
#11244D
oklch(27.1% 0.08 263.3)
#285AD3 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) | #006BD7 | 0.042 |
| Deuteranopia (no green cones) | #005BD1 | 0.017 |
| Tritanopia (no blue cones) | #00798E | 0.151 |
| Achromatopsia (no color) | #636363 | 0.195 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #285AD3
#285AD3
oklch(51% 0.194 263.8)
- #826000
#826000
oklch(51% 0.105 84.3)
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 #285AD3, closest first.
No curated palette has a color within ΔE 0.04 of #285AD3.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.037
- Azul #1D5DEC ΔE 0.039
- Royal Blue #4169E1 ΔE 0.051
- Neon Blue #4361EE ΔE 0.054
- Blue Blue #2242C7 ΔE 0.060
- Cerulean Blue #056EEE ΔE 0.061
- Bright Blue #0165FC ΔE 0.067
- Mid Blue #276AB3 ΔE 0.069
Use #285AD3 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.