#285AAA
Closest named color: Denim Blue (#3B5B92). oklch(47.8% 0.139 259.5), rgb(40, 90, 170).
Aa
White text reads best on this color (6.70:1).
About this color
#285AAA is a medium-dark, moderately saturated blue. In OKLCH its lightness is 48%, its chroma 0.139 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Denim Blue (#3B5B92), ΔE 0.043 away. White text reads best on it, at 6.70:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.139) |
| Temperature | cool |
| Nearest name | Denim Blue (#3B5B92) |
| Black text | 3.13:1 |
| White text | 6.70:1 |
Values
| HEX | #285AAA |
| RGB | rgb(40, 90, 170) |
| HSL | hsl(217, 62%, 41%) |
| OKLCH | oklch(47.8% 0.139 259.5) |
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 #285AAA | 6.70:1 | AA | Lc -87.7 | Fine for body text |
| Black text on #285AAA | 3.13:1 | AA large text | Lc 21.4 | Dividers and decoration only |
| #285AAA text on white | 6.70:1 | AA | Lc 82.7 | Fine for body text |
| #285AAA text on black | 3.13:1 | AA large text | Lc -19.2 | 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
#78A1E4
oklch(70.6% 0.109 259.9)
-
Step 500
500
#5589DC
oklch(63.2% 0.138 259.4)
-
Step 600
600
#3971C9
oklch(55.6% 0.149 259.2)
-
Step 700
700 (this color)
#285AAA
oklch(47.8% 0.139 259.5)
-
Step 800
800
#254D8D
oklch(42.7% 0.115 259.4)
-
Step 900
900
#234171
oklch(37.8% 0.09 259.4)
-
Step 950
950
#152642
oklch(27% 0.057 259.9)
#285AAA 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) | #2F62AD | 0.024 |
| Deuteranopia (no green cones) | #0D56A8 | 0.021 |
| Tritanopia (no blue cones) | #006D7A | 0.108 |
| Achromatopsia (no color) | #5C5C5C | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #285AAA
#285AAA
oklch(47.8% 0.139 259.5)
- #7A5500
#7A5500
oklch(47.7% 0.099 79.4)
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 #285AAA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim Blue #3B5B92 ΔE 0.043
- Mid Blue #276AB3 ΔE 0.045
- Dusk Blue #26538D ΔE 0.049
- Dusky Blue #475F94 ΔE 0.052
- Light Navy Blue #2E5A88 ΔE 0.055
- Peacock Blue #016795 ΔE 0.057
- French Blue #436BAD ΔE 0.058
- Denim #3B638C ΔE 0.062
Use #285AAA 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.