#27576B
Closest named color: Petrol (#005F6A). oklch(43.2% 0.061 228), rgb(39, 87, 107).
Aa
White text reads best on this color (7.88:1).
About this color
#27576B is a dark, muted teal or cyan. In OKLCH its lightness is 43%, its chroma 0.061 and its hue 228°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.030 away. White text reads best on it, at 7.88:1.
| Hue family | Teals and cyans |
| Lightness | dark (43%) |
| Chroma | muted (0.061) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.66:1 |
| White text | 7.88:1 |
Values
| HEX | #27576B |
| RGB | rgb(39, 87, 107) |
| HSL | hsl(198, 47%, 29%) |
| OKLCH | oklch(43.2% 0.061 228) |
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 #27576B | 7.88:1 | AAA | Lc -91.9 | Preferred for body text |
| Black text on #27576B | 2.66:1 | Fails | Lc 16.8 | Dividers and decoration only |
| #27576B text on white | 7.88:1 | AAA | Lc 87.2 | Fine for body text |
| #27576B text on black | 2.66:1 | Fails | Lc -14.9 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E3EBEF
oklch(93.5% 0.01 228.9)
-
Step 200
200
#CCDCE4
oklch(88.5% 0.02 229.1)
-
Step 300
300
#A9C6D3
oklch(80.9% 0.036 226.7)
-
Step 400
400
#7BA8BD
oklch(70.7% 0.057 228.4)
-
Step 500
500
#5792AD
oklch(63% 0.074 229.1)
-
Step 600
600
#3A7C98
oklch(55.5% 0.08 228.5)
-
Step 700
700
#2B6982
oklch(49.2% 0.074 227.8)
-
Step 800
800 (this color)
#27576B
oklch(43.2% 0.061 228)
-
Step 900
900
#244756
oklch(37.8% 0.048 227.9)
-
Step 950
950
#162932
oklch(26.9% 0.03 229.7)
#27576B 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) | #4D556C | 0.046 |
| Deuteranopia (no green cones) | #434E6B | 0.040 |
| Tritanopia (no blue cones) | #005D5D | 0.041 |
| Achromatopsia (no color) | #515151 | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #27576B
#27576B
oklch(43.2% 0.061 228)
- #6C4632
#6C4632
oklch(43.2% 0.061 48.4)
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 #27576B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.030
- YInMn Blue #415A77 ΔE 0.038
- Deep Teal #00555A ΔE 0.039
- Deep Sea Blue #015482 ΔE 0.046
- Dark Slate Gray #2F4F4F ΔE 0.046
- Light Navy Blue #2E5A88 ΔE 0.049
- Light Navy #155084 ΔE 0.054
- Dark Grey Blue #29465B ΔE 0.054
Use #27576B 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.