#29357B
Closest named color: Twilight Blue (#0A437A). oklch(36.2% 0.119 271.8), rgb(41, 53, 123).
Aa
White text reads best on this color (11.11:1).
About this color
#29357B is a dark, moderately saturated blue. In OKLCH its lightness is 36%, its chroma 0.119 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.044 away. White text reads best on it, at 11.11:1.
| Hue family | Blues |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.119) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 1.88:1 |
| White text | 11.11:1 |
Values
| HEX | #29357B |
| RGB | rgb(41, 53, 123) |
| HSL | hsl(231, 50%, 32%) |
| OKLCH | oklch(36.2% 0.119 271.8) |
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 #29357B | 11.11:1 | AAA | Lc -99.2 | Preferred for body text |
| Black text on #29357B | 1.88:1 | Fails | Lc 8.5 | Not readable |
| #29357B text on white | 11.11:1 | AAA | Lc 95.4 | Preferred for body text |
| #29357B text on black | 1.88:1 | Fails | Lc 0.0 | Not readable |
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 900.
-
Step 50
50
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E3E9FC
oklch(93.5% 0.027 271.9)
-
Step 200
200
#CDD8FB
oklch(88.5% 0.05 271.6)
-
Step 300
300
#ACBEFB
oklch(81% 0.089 271.6)
-
Step 400
400
#8199F9
oklch(70.6% 0.143 271.7)
-
Step 500
500
#647CF6
oklch(63% 0.183 271.8)
-
Step 600
600
#4E62E5
oklch(55.6% 0.198 271.8)
-
Step 700
700
#4050C7
oklch(49.1% 0.184 271.9)
-
Step 800
800
#3442A1
oklch(42.6% 0.153 271.9)
-
Step 900
900 (this color)
#29357B
oklch(36.2% 0.119 271.8)
-
Step 950
950
#1A224B
oklch(27% 0.076 272.1)
#29357B 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) | #013F7D | 0.037 |
| Deuteranopia (no green cones) | #00387A | 0.033 |
| Tritanopia (no blue cones) | #004652 | 0.101 |
| Achromatopsia (no color) | #3C3C3C | 0.119 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #29357B
#29357B
oklch(36.2% 0.119 271.8)
- #4C3C00
#4C3C00
oklch(36.3% 0.074 91.9)
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 #29357B, closest first.
No curated palette has a color within ΔE 0.04 of #29357B.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.044
- Marine Blue #01386A ΔE 0.047
- Cobalt #1E488F ΔE 0.058
- Dark Slate Blue #483D8B ΔE 0.061
- Marine #042E60 ΔE 0.065
- Prussian Blue #1D3557 ΔE 0.066
- Blueberry #464196 ΔE 0.072
- Light Navy #155084 ΔE 0.076
Use #29357B 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.