#234F77
Closest named color: Light Navy (#155084). oklch(41.7% 0.083 248.5), rgb(35, 79, 119).
Aa
White text reads best on this color (8.54:1).
About this color
#234F77 is a dark, moderately saturated blue. In OKLCH its lightness is 42%, its chroma 0.083 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.023 away. White text reads best on it, at 8.54:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.45:1 |
| White text | 8.54:1 |
Values
| HEX | #234F77 |
| RGB | rgb(35, 79, 119) |
| HSL | hsl(209, 55%, 30%) |
| OKLCH | oklch(41.7% 0.083 248.5) |
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 #234F77 | 8.54:1 | AAA | Lc -93.7 | Preferred for body text |
| Black text on #234F77 | 2.45:1 | Fails | Lc 14.8 | Not readable |
| #234F77 text on white | 8.54:1 | AAA | Lc 89.2 | Fine for body text |
| #234F77 text on black | 2.45:1 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EBF3
oklch(93.6% 0.014 248)
-
Step 200
200
#CCDBEB
oklch(88.5% 0.027 249.9)
-
Step 300
300
#A9C4DF
oklch(80.9% 0.048 248.4)
-
Step 400
400
#7AA5CF
oklch(70.7% 0.077 248.4)
-
Step 500
500
#578EC3
oklch(63.1% 0.099 248.8)
-
Step 600
600
#3B77AF
oklch(55.5% 0.108 248.9)
-
Step 700
700
#2C6497
oklch(49.1% 0.101 248.8)
-
Step 800
800 (this color)
#234F77
oklch(41.7% 0.083 248.5)
-
Step 900
900
#244462
oklch(37.7% 0.064 248.4)
-
Step 950
950
#16283A
oklch(27.1% 0.041 249.6)
#234F77 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) | #3D5179 | 0.031 |
| Deuteranopia (no green cones) | #324976 | 0.022 |
| Tritanopia (no blue cones) | #00585D | 0.062 |
| Achromatopsia (no color) | #4C4C4C | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #234F77
#234F77
oklch(41.7% 0.083 248.5)
- #69420F
#69420F
oklch(41.5% 0.083 67.9)
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 #234F77, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.023
- Deep Sea Blue #015482 ΔE 0.024
- Dusk Blue #26538D ΔE 0.037
- Light Navy Blue #2E5A88 ΔE 0.043
- Twilight Blue #0A437A ΔE 0.044
- Cobalt #1E488F ΔE 0.049
- Dark Grey Blue #29465B ΔE 0.049
- YInMn Blue #415A77 ΔE 0.051
Use #234F77 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.