#05252A
Closest named color: Dark (#1B2431). oklch(24.4% 0.037 209.8), rgb(5, 37, 42).
Aa
White text reads best on this color (16.09:1).
About this color
#05252A is a very dark, muted teal or cyan. In OKLCH its lightness is 24%, its chroma 0.037 and its hue 210°. Its hue sits on the cool side of the wheel. The nearest named color is Dark (#1B2431), ΔE 0.031 away. White text reads best on it, at 16.09:1.
| Hue family | Teals and cyans |
| Lightness | very dark (24%) |
| Chroma | muted (0.037) |
| Temperature | cool |
| Nearest name | Dark (#1B2431) |
| Black text | 1.30:1 |
| White text | 16.09:1 |
Values
| HEX | #05252A |
| RGB | rgb(5, 37, 42) |
| HSL | hsl(188, 79%, 9%) |
| OKLCH | oklch(24.4% 0.037 209.8) |
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 #05252A | 16.09:1 | AAA | Lc -105.5 | Preferred for body text |
| Black text on #05252A | 1.30:1 | Fails | Lc 0.0 | Not readable |
| #05252A text on white | 16.09:1 | AAA | Lc 102.9 | Preferred for body text |
| #05252A text on black | 1.30:1 | 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
#F1F7F8
oklch(97.2% 0.007 208.8)
-
Step 100
100
#E1ECEE
oklch(93.5% 0.012 209.8)
-
Step 200
200
#C7DEE2
oklch(88.5% 0.025 209.3)
-
Step 300
300
#A0C9D0
oklch(80.9% 0.044 209.1)
-
Step 400
400
#69ADB9
oklch(70.7% 0.071 210)
-
Step 500
500
#3898A8
oklch(63% 0.091 210.5)
-
Step 600
600
#008292
oklch(55.6% 0.096 209.8)
-
Step 700
700
#006D7B
oklch(49% 0.085 210.2)
-
Step 800
800
#005A65
oklch(42.8% 0.074 209.1)
-
Step 900
900
#0E4A53
oklch(37.7% 0.059 210)
-
Step 950
950 (this color)
#05252A
oklch(24.4% 0.037 209.8)
#05252A 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) | #21232A | 0.036 |
| Deuteranopia (no green cones) | #1B1F2A | 0.033 |
| Tritanopia (no blue cones) | #002727 | 0.012 |
| Achromatopsia (no color) | #212121 | 0.038 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #05252A
#05252A
oklch(24.4% 0.037 209.8)
- #301915
#301915
oklch(24.4% 0.038 30.6)
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 #05252A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark #1B2431 ΔE 0.031
- Jet #212529 ΔE 0.035
- Rich Black #0D1B2A ΔE 0.037
- Oxford Blue #1B263B ΔE 0.044
- Space Cadet #2B2D42 ΔE 0.075
- Rich Navy #001219 ΔE 0.076
- Dark Forest Green #002D04 ΔE 0.077
- Gunmetal #293241 ΔE 0.077
Use #05252A 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.