#055A68
Closest named color: Petrol (#005F6A). oklch(43% 0.074 213.2), rgb(5, 90, 104).
Aa
White text reads best on this color (7.86:1).
About this color
#055A68 is a dark, moderately saturated teal or cyan. In OKLCH its lightness is 43%, its chroma 0.074 and its hue 213°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.016 away. White text reads best on it, at 7.86:1.
| Hue family | Teals and cyans |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.66:1 |
| White text | 7.86:1 |
Values
| HEX | #055A68 |
| RGB | rgb(5, 90, 104) |
| HSL | hsl(188, 91%, 21%) |
| OKLCH | oklch(43% 0.074 213.2) |
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 #055A68 | 7.86:1 | AAA | Lc -91.6 | Preferred for body text |
| Black text on #055A68 | 2.66:1 | Fails | Lc 17.2 | Dividers and decoration only |
| #055A68 text on white | 7.86:1 | AAA | Lc 86.9 | Fine for body text |
| #055A68 text on black | 2.66:1 | Fails | Lc -15.2 | Dividers and decoration only |
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
#F1F6F8
oklch(97% 0.006 223.5)
-
Step 100
100
#E1ECEF
oklch(93.6% 0.012 215.8)
-
Step 200
200
#C8DEE3
oklch(88.6% 0.024 212.9)
-
Step 300
300
#A2C8D1
oklch(80.8% 0.042 213.7)
-
Step 400
400
#6CACBA
oklch(70.6% 0.069 213.1)
-
Step 500
500
#3E97A9
oklch(63% 0.088 213.2)
-
Step 600
600
#088195
oklch(55.5% 0.096 213.8)
-
Step 700
700
#006D7E
oklch(49.1% 0.086 213.3)
-
Step 800
800 (this color)
#055A68
oklch(43% 0.074 213.2)
-
Step 900
900
#134954
oklch(37.6% 0.057 214.2)
-
Step 950
950
#0E2B31
oklch(27% 0.036 213.3)
#055A68 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) | #505769 | 0.067 |
| Deuteranopia (no green cones) | #444E68 | 0.061 |
| Tritanopia (no blue cones) | #005F5E | 0.027 |
| Achromatopsia (no color) | #525252 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #055A68
#055A68
oklch(43% 0.074 213.2)
- #734035
#734035
oklch(43.1% 0.074 33.1)
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 #055A68, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.016
- Deep Teal #00555A ΔE 0.026
- Dark Slate Gray #2F4F4F ΔE 0.048
- Dark Aqua #05696B ΔE 0.048
- Dark Green Blue #1F6357 ΔE 0.049
- Deep Sea Blue #015482 ΔE 0.052
- Dark Blue Green #005249 ΔE 0.053
- Dark Teal #014D4E ΔE 0.054
Use #055A68 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.