#234F75
Closest named color: Light Navy (#155084). oklch(41.5% 0.08 247.3), rgb(35, 79, 117).
Aa
White text reads best on this color (8.58:1).
About this color
#234F75 is a dark, moderately saturated blue. In OKLCH its lightness is 42%, its chroma 0.080 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.026 away. White text reads best on it, at 8.58:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.080) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.44:1 |
| White text | 8.58:1 |
Values
| HEX | #234F75 |
| RGB | rgb(35, 79, 117) |
| HSL | hsl(208, 54%, 30%) |
| OKLCH | oklch(41.5% 0.08 247.3) |
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 #234F75 | 8.58:1 | AAA | Lc -93.8 | Preferred for body text |
| Black text on #234F75 | 2.44:1 | Fails | Lc 14.7 | Not readable |
| #234F75 text on white | 8.58:1 | AAA | Lc 89.3 | Fine for body text |
| #234F75 text on black | 2.44:1 | Fails | Lc -13.0 | 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 800.
-
Step 50
50
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF3
oklch(93.6% 0.014 248)
-
Step 200
200
#CCDBEA
oklch(88.5% 0.026 248.1)
-
Step 300
300
#A9C4DE
oklch(80.9% 0.047 247.4)
-
Step 400
400
#7BA5CD
oklch(70.6% 0.075 247.7)
-
Step 500
500
#578EC1
oklch(63% 0.097 247.8)
-
Step 600
600
#3B78AD
oklch(55.6% 0.104 247.2)
-
Step 700
700
#2D6595
oklch(49.2% 0.097 247.2)
-
Step 800
800 (this color)
#234F75
oklch(41.5% 0.08 247.3)
-
Step 900
900
#244461
oklch(37.6% 0.063 247.6)
-
Step 950
950
#162839
oklch(27% 0.04 248.2)
#234F75 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) | #3E5077 | 0.031 |
| Deuteranopia (no green cones) | #334974 | 0.023 |
| Tritanopia (no blue cones) | #00585C | 0.061 |
| Achromatopsia (no color) | #4C4C4C | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #234F75
#234F75
oklch(41.5% 0.08 247.3)
- #684213
#684213
oklch(41.4% 0.08 67.3)
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 #234F75, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.026
- Deep Sea Blue #015482 ΔE 0.026
- Dusk Blue #26538D ΔE 0.040
- Light Navy Blue #2E5A88 ΔE 0.045
- Twilight Blue #0A437A ΔE 0.045
- Dark Grey Blue #29465B ΔE 0.046
- YInMn Blue #415A77 ΔE 0.051
- Cobalt #1E488F ΔE 0.052
Use #234F75 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.