#29376D
Closest named color: Marine Blue (#01386A). oklch(35.5% 0.095 270.1), rgb(41, 55, 109).
Aa
White text reads best on this color (11.28:1).
About this color
#29376D is a dark, moderately saturated blue. In OKLCH its lightness is 36%, its chroma 0.095 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.035 away. White text reads best on it, at 11.28:1.
| Hue family | Blues |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.095) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.86:1 |
| White text | 11.28:1 |
Values
| HEX | #29376D |
| RGB | rgb(41, 55, 109) |
| HSL | hsl(228, 45%, 29%) |
| OKLCH | oklch(35.5% 0.095 270.1) |
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 #29376D | 11.28:1 | AAA | Lc -99.6 | Preferred for body text |
| Black text on #29376D | 1.86:1 | Fails | Lc 8.1 | Not readable |
| #29376D text on white | 11.28:1 | AAA | Lc 95.8 | Preferred for body text |
| #29376D text on black | 1.86:1 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E4EAF8
oklch(93.7% 0.02 267.3)
-
Step 200
200
#CFD9F4
oklch(88.6% 0.039 269.4)
-
Step 300
300
#AFBFF0
oklch(80.9% 0.072 270.6)
-
Step 400
400
#859DE8
oklch(70.8% 0.114 269.8)
-
Step 500
500
#6882E1
oklch(63.1% 0.146 270.3)
-
Step 600
600
#506ACF
oklch(55.7% 0.158 269.8)
-
Step 700
700
#4157B3
oklch(49% 0.148 270)
-
Step 800
800
#364891
oklch(42.7% 0.122 270.1)
-
Step 900
900 (this color)
#29376D
oklch(35.5% 0.095 270.1)
-
Step 950
950
#1B2444
oklch(27% 0.061 270.1)
#29376D 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) | #1D3E6F | 0.023 |
| Deuteranopia (no green cones) | #12386C | 0.024 |
| Tritanopia (no blue cones) | #00434C | 0.084 |
| Achromatopsia (no color) | #3B3B3B | 0.095 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #29376D
#29376D
oklch(35.5% 0.095 270.1)
- #4B3A00
#4B3A00
oklch(35.7% 0.073 90.2)
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 #29376D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.035
- Twilight Blue #0A437A ΔE 0.042
- Prussian Blue #1D3557 ΔE 0.043
- Marine #042E60 ΔE 0.054
- Dark Grey Blue #29465B ΔE 0.062
- Dark Blue Grey #1F3B4D ΔE 0.063
- Cobalt #1E488F ΔE 0.070
- Midnight Green #073B4C ΔE 0.072
Use #29376D 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.