#234D64
Closest named color: Dark Grey Blue (#29465B). oklch(40.1% 0.061 235.1), rgb(35, 77, 100).
Aa
White text reads best on this color (9.06:1).
About this color
#234D64 is a dark, muted blue. In OKLCH its lightness is 40%, its chroma 0.061 and its hue 235°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.023 away. White text reads best on it, at 9.06:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | muted (0.061) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.31:1 |
| White text | 9.06:1 |
Values
| HEX | #234D64 |
| RGB | rgb(35, 77, 100) |
| HSL | hsl(201, 48%, 26%) |
| OKLCH | oklch(40.1% 0.061 235.1) |
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 #234D64 | 9.06:1 | AAA | Lc -95.1 | Preferred for body text |
| Black text on #234D64 | 2.31:1 | Fails | Lc 13.3 | Not readable |
| #234D64 text on white | 9.06:1 | AAA | Lc 90.7 | Preferred for body text |
| #234D64 text on black | 2.31:1 | Fails | Lc -11.6 | 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 900.
-
Step 50
50
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E2EBF2
oklch(93.5% 0.014 241)
-
Step 200
200
#CADCE8
oklch(88.5% 0.025 236.9)
-
Step 300
300
#A5C6DA
oklch(80.9% 0.045 234.7)
-
Step 400
400
#73A8C8
oklch(70.6% 0.073 235.7)
-
Step 500
500
#4B92BA
oklch(63% 0.093 235.6)
-
Step 600
600
#297CA6
oklch(55.6% 0.101 235.2)
-
Step 700
700
#1A688E
oklch(49% 0.094 235.3)
-
Step 800
800
#195573
oklch(42.6% 0.078 234.9)
-
Step 900
900 (this color)
#234D64
oklch(40.1% 0.061 235.1)
-
Step 950
950
#122937
oklch(26.9% 0.039 237.4)
#234D64 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) | #424C65 | 0.038 |
| Deuteranopia (no green cones) | #394664 | 0.032 |
| Tritanopia (no blue cones) | #005355 | 0.042 |
| Achromatopsia (no color) | #494949 | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #234D64
#234D64
oklch(40.1% 0.061 235.1)
- #613F27
#613F27
oklch(40.1% 0.06 55.3)
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 #234D64, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.023
- Charcoal #264653 ΔE 0.032
- Deep Teal #00555A ΔE 0.039
- Dark Slate Gray #2F4F4F ΔE 0.040
- Dark Teal #014D4E ΔE 0.046
- Deep Sea Blue #015482 ΔE 0.051
- Light Navy #155084 ΔE 0.053
- Petrol #005F6A ΔE 0.056
Use #234D64 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.