#29307C
Closest named color: Marine Blue (#01386A). oklch(35.2% 0.128 273.9), rgb(41, 48, 124).
Aa
White text reads best on this color (11.61:1).
About this color
#29307C is a dark, moderately saturated blue. In OKLCH its lightness is 35%, its chroma 0.128 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.051 away. White text reads best on it, at 11.61:1.
| Hue family | Blues |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.128) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.80:1 |
| White text | 11.61:1 |
Values
| HEX | #29307C |
| RGB | rgb(41, 48, 124) |
| HSL | hsl(235, 50%, 32%) |
| OKLCH | oklch(35.2% 0.128 273.9) |
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 #29307C | 11.61:1 | AAA | Lc -100.0 | Preferred for body text |
| Black text on #29307C | 1.80:1 | Fails | Lc 7.6 | Not readable |
| #29307C text on white | 11.61:1 | AAA | Lc 96.3 | Preferred for body text |
| #29307C text on black | 1.80:1 | 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
#E4E9FD
oklch(93.6% 0.028 274.7)
-
Step 200
200
#CED7FD
oklch(88.4% 0.053 274.8)
-
Step 300
300
#ADBDFF
oklch(81% 0.095 273.6)
-
Step 400
400
#8497FF
oklch(70.7% 0.153 274)
-
Step 500
500
#6879FD
oklch(63.1% 0.195 273.9)
-
Step 600
600
#525DEC
oklch(55.5% 0.212 273.8)
-
Step 700
700
#444BCE
oklch(49.1% 0.198 274.1)
-
Step 800
800
#373FA6
oklch(42.7% 0.163 273.8)
-
Step 900
900 (this color)
#29307C
oklch(35.2% 0.128 273.9)
-
Step 950
950
#1B214D
oklch(27% 0.081 273.9)
#29307C 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) | #003C7F | 0.041 |
| Deuteranopia (no green cones) | #00357A | 0.036 |
| Tritanopia (no blue cones) | #004351 | 0.106 |
| Achromatopsia (no color) | #393939 | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #29307C
#29307C
oklch(35.2% 0.128 273.9)
- #483A00
#483A00
oklch(35.3% 0.072 93.7)
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 #29307C, closest first.
No curated palette has a color within ΔE 0.04 of #29307C.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.051
- Twilight Blue #0A437A ΔE 0.055
- Marine #042E60 ΔE 0.064
- Midnight Blue #191970 ΔE 0.066
- Dark Slate Blue #483D8B ΔE 0.068
- Cobalt #1E488F ΔE 0.069
- Prussian Blue #1D3557 ΔE 0.070
- Royal #0C1793 ΔE 0.074
Use #29307C 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.