#07212C
Closest named color: Rich Black (#0D1B2A). oklch(23.4% 0.038 229.4), rgb(7, 33, 44).
Aa
White text reads best on this color (16.62:1).
About this color
#07212C is a very dark, muted teal or cyan. In OKLCH its lightness is 23%, its chroma 0.038 and its hue 229°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.021 away. White text reads best on it, at 16.62:1.
| Hue family | Teals and cyans |
| Lightness | very dark (23%) |
| Chroma | muted (0.038) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.26:1 |
| White text | 16.62:1 |
Values
| HEX | #07212C |
| RGB | rgb(7, 33, 44) |
| HSL | hsl(198, 73%, 10%) |
| OKLCH | oklch(23.4% 0.038 229.4) |
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 #07212C | 16.62:1 | AAA | Lc -105.9 | Preferred for body text |
| Black text on #07212C | 1.26:1 | Fails | Lc 0.0 | Not readable |
| #07212C text on white | 16.62:1 | AAA | Lc 103.4 | Preferred for body text |
| #07212C text on black | 1.26:1 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E2ECF1
oklch(93.7% 0.013 228.9)
-
Step 200
200
#C9DDE6
oklch(88.5% 0.025 226.5)
-
Step 300
300
#A4C7D8
oklch(81% 0.044 228.9)
-
Step 400
400
#70AAC5
oklch(70.8% 0.072 229)
-
Step 500
500
#4694B6
oklch(63.1% 0.092 229.2)
-
Step 600
600
#217EA2
oklch(55.7% 0.099 229.2)
-
Step 700
700
#106A8B
oklch(49.2% 0.093 229.6)
-
Step 800
800
#135670
oklch(42.6% 0.076 229.4)
-
Step 900
900
#19475B
oklch(37.6% 0.06 230.1)
-
Step 950
950 (this color)
#07212C
oklch(23.4% 0.038 229.4)
#07212C 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) | #1B202D | 0.026 |
| Deuteranopia (no green cones) | #161D2C | 0.022 |
| Tritanopia (no blue cones) | #002425 | 0.022 |
| Achromatopsia (no color) | #1E1E1E | 0.038 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #07212C
#07212C
oklch(23.4% 0.038 229.4)
- #2C180D
#2C180D
oklch(23.3% 0.038 49)
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 #07212C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.021
- Dark #1B2431 ΔE 0.031
- Jet #212529 ΔE 0.041
- Oxford Blue #1B263B ΔE 0.042
- Rich Navy #001219 ΔE 0.065
- Navy Blue #001146 ΔE 0.077
- Space Cadet #2B2D42 ΔE 0.078
- Gunmetal #293241 ΔE 0.084
Use #07212C 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.