#234E6D
Closest named color: Dark Grey Blue (#29465B). oklch(40.8% 0.071 242.6), rgb(35, 78, 109).
Aa
White text reads best on this color (8.81:1).
About this color
#234E6D is a dark, moderately saturated blue. In OKLCH its lightness is 41%, its chroma 0.071 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.034 away. White text reads best on it, at 8.81:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.38:1 |
| White text | 8.81:1 |
Values
| HEX | #234E6D |
| RGB | rgb(35, 78, 109) |
| HSL | hsl(205, 51%, 28%) |
| OKLCH | oklch(40.8% 0.071 242.6) |
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 #234E6D | 8.81:1 | AAA | Lc -94.4 | Preferred for body text |
| Black text on #234E6D | 2.38:1 | Fails | Lc 14.0 | Not readable |
| #234E6D text on white | 8.81:1 | AAA | Lc 90.0 | Fine for body text |
| #234E6D text on black | 2.38:1 | Fails | Lc -12.3 | 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
#E3EBF1
oklch(93.6% 0.012 239.9)
-
Step 200
200
#CDDBE7
oklch(88.4% 0.022 243.8)
-
Step 300
300
#AAC4DA
oklch(80.8% 0.042 243.8)
-
Step 400
400
#7CA6C7
oklch(70.7% 0.067 242.5)
-
Step 500
500
#5A90B9
oklch(63.2% 0.085 242.5)
-
Step 600
600
#3E79A5
oklch(55.6% 0.092 243.1)
-
Step 700
700
#2F668D
oklch(49.1% 0.085 242.2)
-
Step 800
800 (this color)
#234E6D
oklch(40.8% 0.071 242.6)
-
Step 900
900
#26455D
oklch(37.8% 0.055 243.4)
-
Step 950
950
#172836
oklch(26.9% 0.035 244.4)
#234E6D 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) | #404E6E | 0.034 |
| Deuteranopia (no green cones) | #36476C | 0.028 |
| Tritanopia (no blue cones) | #005659 | 0.052 |
| Achromatopsia (no color) | #4A4A4A | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #234E6D
#234E6D
oklch(40.8% 0.071 242.6)
- #65411D
#65411D
oklch(40.9% 0.071 63.4)
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 #234E6D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.034
- Deep Sea Blue #015482 ΔE 0.037
- Light Navy #155084 ΔE 0.038
- Charcoal #264653 ΔE 0.045
- Deep Teal #00555A ΔE 0.049
- Twilight Blue #0A437A ΔE 0.049
- Dark Slate Gray #2F4F4F ΔE 0.053
- Dusk Blue #26538D ΔE 0.054
Use #234E6D 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.