#285191
Closest named color: Dusk Blue (#26538D). oklch(44% 0.115 259.1), rgb(40, 81, 145).
Aa
White text reads best on this color (7.84:1).
About this color
#285191 is a dark, moderately saturated blue. In OKLCH its lightness is 44%, its chroma 0.115 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.010 away. White text reads best on it, at 7.84:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.115) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.67:1 |
| White text | 7.84:1 |
Values
| HEX | #285191 |
| RGB | rgb(40, 81, 145) |
| HSL | hsl(217, 57%, 36%) |
| OKLCH | oklch(44% 0.115 259.1) |
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 #285191 | 7.84:1 | AAA | Lc -91.7 | Preferred for body text |
| Black text on #285191 | 2.67:1 | Fails | Lc 17.1 | Dividers and decoration only |
| #285191 text on white | 7.84:1 | AAA | Lc 86.9 | Fine for body text |
| #285191 text on black | 2.67:1 | Fails | Lc -15.2 | 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 800.
-
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
#CBDAF2
oklch(88.5% 0.037 259.8)
-
Step 300
300
#A7C2ED
oklch(80.9% 0.068 259.6)
-
Step 400
400
#77A2E4
oklch(70.8% 0.108 258.7)
-
Step 500
500
#5489DC
oklch(63.2% 0.138 259)
-
Step 600
600
#3871C9
oklch(55.6% 0.149 258.9)
-
Step 700
700
#2B5EAE
oklch(49.1% 0.139 259.2)
-
Step 800
800 (this color)
#285191
oklch(44% 0.115 259.1)
-
Step 900
900
#224171
oklch(37.8% 0.09 258.9)
-
Step 950
950
#152642
oklch(27% 0.057 259.9)
#285191 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) | #325793 | 0.021 |
| Deuteranopia (no green cones) | #1F4D90 | 0.015 |
| Tritanopia (no blue cones) | #00606A | 0.091 |
| Achromatopsia (no color) | #525252 | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #285191
#285191
oklch(44% 0.115 259.1)
- #6D4B00
#6D4B00
oklch(43.9% 0.091 78.8)
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 #285191, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.010
- Light Navy #155084 ΔE 0.027
- Cobalt #1E488F ΔE 0.029
- Light Navy Blue #2E5A88 ΔE 0.034
- Deep Sea Blue #015482 ΔE 0.036
- Denim Blue #3B5B92 ΔE 0.038
- Twilight #4E518B ΔE 0.047
- Blueberry #464196 ΔE 0.054
Use #285191 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.