#04232C
Closest named color: Rich Black (#0D1B2A). oklch(23.9% 0.039 221), rgb(4, 35, 44).
Aa
White text reads best on this color (16.38:1).
About this color
#04232C is a very dark, muted teal or cyan. In OKLCH its lightness is 24%, its chroma 0.039 and its hue 221°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.029 away. White text reads best on it, at 16.38:1.
| Hue family | Teals and cyans |
| Lightness | very dark (24%) |
| Chroma | muted (0.039) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.28:1 |
| White text | 16.38:1 |
Values
| HEX | #04232C |
| RGB | rgb(4, 35, 44) |
| HSL | hsl(194, 83%, 9%) |
| OKLCH | oklch(23.9% 0.039 221) |
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 #04232C | 16.38:1 | AAA | Lc -105.7 | Preferred for body text |
| Black text on #04232C | 1.28:1 | Fails | Lc 0.0 | Not readable |
| #04232C text on white | 16.38:1 | AAA | Lc 103.2 | Preferred for body text |
| #04232C text on black | 1.28:1 | Fails | Lc 0.0 | 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 950.
-
Step 50
50
#F1F6F8
oklch(97% 0.006 223.5)
-
Step 100
100
#E1ECF0
oklch(93.6% 0.013 221.4)
-
Step 200
200
#C7DDE5
oklch(88.4% 0.026 221.6)
-
Step 300
300
#A0C8D6
oklch(80.9% 0.047 221.2)
-
Step 400
400
#69ACC2
oklch(70.8% 0.075 221)
-
Step 500
500
#3996B2
oklch(63% 0.095 221.4)
-
Step 600
600
#00809D
oklch(55.6% 0.102 221.1)
-
Step 700
700
#006C84
oklch(49.2% 0.09 220.2)
-
Step 800
800
#00586D
oklch(42.6% 0.078 221.3)
-
Step 900
900
#0F4959
oklch(37.7% 0.063 221)
-
Step 950
950 (this color)
#04232C
oklch(23.9% 0.039 221)
#04232C 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) | #1E222C | 0.033 |
| Deuteranopia (no green cones) | #181E2C | 0.028 |
| Tritanopia (no blue cones) | #002626 | 0.019 |
| Achromatopsia (no color) | #202020 | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #04232C
#04232C
oklch(23.9% 0.039 221)
- #2F1810
#2F1810
oklch(23.9% 0.04 39.9)
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 #04232C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.029
- Dark #1B2431 ΔE 0.031
- Jet #212529 ΔE 0.039
- Oxford Blue #1B263B ΔE 0.042
- Rich Navy #001219 ΔE 0.070
- Space Cadet #2B2D42 ΔE 0.076
- Gunmetal #293241 ΔE 0.081
- Navy Blue #001146 ΔE 0.082
Use #04232C 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.