#285BAC
Closest named color: Mid Blue (#276AB3). oklch(48.2% 0.141 259.4), rgb(40, 91, 172).
Aa
White text reads best on this color (6.59:1).
About this color
#285BAC is a medium-dark, vivid blue. In OKLCH its lightness is 48%, its chroma 0.141 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.042 away. White text reads best on it, at 6.59:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.141) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.18:1 |
| White text | 6.59:1 |
Values
| HEX | #285BAC |
| RGB | rgb(40, 91, 172) |
| HSL | hsl(217, 62%, 42%) |
| OKLCH | oklch(48.2% 0.141 259.4) |
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 #285BAC | 6.59:1 | AA | Lc -87.3 | Fine for body text |
| Black text on #285BAC | 3.18:1 | AA large text | Lc 21.8 | Dividers and decoration only |
| #285BAC text on white | 6.59:1 | AA | Lc 82.2 | Fine for body text |
| #285BAC text on black | 3.18:1 | AA large text | Lc -19.7 | 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
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E2EAF7
oklch(93.5% 0.02 260.2)
-
Step 200
200
#CBDAF3
oklch(88.5% 0.038 260.7)
-
Step 300
300
#A7C2ED
oklch(80.9% 0.068 259.6)
-
Step 400
400
#77A1E4
oklch(70.6% 0.109 259.5)
-
Step 500
500
#5489DD
oklch(63.2% 0.139 259.2)
-
Step 600
600
#3871CA
oklch(55.7% 0.151 259.1)
-
Step 700
700 (this color)
#285BAC
oklch(48.2% 0.141 259.4)
-
Step 800
800
#244D8E
oklch(42.7% 0.117 259.3)
-
Step 900
900
#224171
oklch(37.8% 0.09 258.9)
-
Step 950
950
#152642
oklch(27% 0.057 259.9)
#285BAC 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) | #2F63AF | 0.024 |
| Deuteranopia (no green cones) | #0C57AA | 0.021 |
| Tritanopia (no blue cones) | #006E7B | 0.109 |
| Achromatopsia (no color) | #5D5D5D | 0.141 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #285BAC
#285BAC
oklch(48.2% 0.141 259.4)
- #7C5600
#7C5600
oklch(48.2% 0.1 78.9)
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 #285BAC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.042
- Denim Blue #3B5B92 ΔE 0.045
- Dusky Blue #475F94 ΔE 0.052
- Dusk Blue #26538D ΔE 0.053
- French Blue #436BAD ΔE 0.055
- Peacock Blue #016795 ΔE 0.057
- Light Navy Blue #2E5A88 ΔE 0.058
- Denim #3B638C ΔE 0.063
Use #285BAC 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.