#234E73
Closest named color: Light Navy (#155084). oklch(41.2% 0.079 247.1), rgb(35, 78, 115).
Aa
White text reads best on this color (8.71:1).
About this color
#234E73 is a dark, moderately saturated blue. In OKLCH its lightness is 41%, its chroma 0.079 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.029 away. White text reads best on it, at 8.71:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.079) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.40:1 |
| White text | 8.71:1 |
Values
| HEX | #234E73 |
| RGB | rgb(35, 78, 115) |
| HSL | hsl(208, 53%, 29%) |
| OKLCH | oklch(41.2% 0.079 247.1) |
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 #234E73 | 8.71:1 | AAA | Lc -94.2 | Preferred for body text |
| Black text on #234E73 | 2.40:1 | Fails | Lc 14.3 | Not readable |
| #234E73 text on white | 8.71:1 | AAA | Lc 89.7 | Fine for body text |
| #234E73 text on black | 2.40:1 | Fails | Lc -12.6 | 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 800.
-
Step 50
50
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF2
oklch(93.6% 0.013 244.3)
-
Step 200
200
#CCDBE9
oklch(88.4% 0.025 246.2)
-
Step 300
300
#AAC4DD
oklch(80.9% 0.045 247.3)
-
Step 400
400
#7BA5CC
oklch(70.6% 0.073 247)
-
Step 500
500
#588FBF
oklch(63.2% 0.093 246.3)
-
Step 600
600
#3C78AC
oklch(55.6% 0.103 247.1)
-
Step 700
700
#2E6593
oklch(49.1% 0.094 246.5)
-
Step 800
800 (this color)
#234E73
oklch(41.2% 0.079 247.1)
-
Step 900
900
#254460
oklch(37.6% 0.061 247.4)
-
Step 950
950
#162838
oklch(26.9% 0.038 246.6)
#234E73 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) | #3E4F75 | 0.032 |
| Deuteranopia (no green cones) | #334872 | 0.023 |
| Tritanopia (no blue cones) | #00575B | 0.060 |
| Achromatopsia (no color) | #4B4B4B | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #234E73
#234E73
oklch(41.2% 0.079 247.1)
- #674114
#674114
oklch(41.1% 0.079 66.4)
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 #234E73, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.029
- Deep Sea Blue #015482 ΔE 0.030
- Dark Grey Blue #29465B ΔE 0.042
- Twilight Blue #0A437A ΔE 0.044
- Dusk Blue #26538D ΔE 0.044
- Light Navy Blue #2E5A88 ΔE 0.049
- YInMn Blue #415A77 ΔE 0.053
- Cobalt #1E488F ΔE 0.053
Use #234E73 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.