#055255
Closest named color: Deep Teal (#00555A). oklch(39.9% 0.066 199.2), rgb(5, 82, 85).
Aa
White text reads best on this color (8.95:1).
About this color
#055255 is a dark, muted teal or cyan. In OKLCH its lightness is 40%, its chroma 0.066 and its hue 199°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.011 away. White text reads best on it, at 8.95:1.
| Hue family | Teals and cyans |
| Lightness | dark (40%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.34:1 |
| White text | 8.95:1 |
Values
| HEX | #055255 |
| RGB | rgb(5, 82, 85) |
| HSL | hsl(182, 89%, 18%) |
| OKLCH | oklch(39.9% 0.066 199.2) |
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 #055255 | 8.95:1 | AAA | Lc -94.6 | Preferred for body text |
| Black text on #055255 | 2.34:1 | Fails | Lc 13.8 | Not readable |
| #055255 text on white | 8.95:1 | AAA | Lc 90.1 | Preferred for body text |
| #055255 text on black | 2.34:1 | Fails | Lc -12.2 | 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 900.
-
Step 50
50
#F1F7F7
oklch(97.2% 0.006 197.1)
-
Step 100
100
#DFEDED
oklch(93.6% 0.015 196.9)
-
Step 200
200
#C5DFE0
oklch(88.5% 0.028 199.5)
-
Step 300
300
#9CCBCD
oklch(81% 0.049 199.5)
-
Step 400
400
#5FB0B3
oklch(70.7% 0.08 198.7)
-
Step 500
500
#1E9CA1
oklch(63.2% 0.102 199.1)
-
Step 600
600
#008488
oklch(55.7% 0.095 198.5)
-
Step 700
700
#006F73
oklch(49.2% 0.084 199.2)
-
Step 800
800
#005B5E
oklch(42.8% 0.073 198.7)
-
Step 900
900 (this color)
#055255
oklch(39.9% 0.066 199.2)
-
Step 950
950
#052D2E
oklch(27.1% 0.042 197.4)
#055255 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) | #4B4E55 | 0.067 |
| Deuteranopia (no green cones) | #414655 | 0.063 |
| Tritanopia (no blue cones) | #005553 | 0.012 |
| Achromatopsia (no color) | #494949 | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #055255
#055255
oklch(39.9% 0.066 199.2)
- #673839
#673839
oklch(40% 0.067 19.1)
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 #055255, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.011
- Dark Teal #014D4E ΔE 0.018
- Dark Blue Green #005249 ΔE 0.021
- Dark Slate Gray #2F4F4F ΔE 0.029
- Charcoal #264653 ΔE 0.041
- Petrol #005F6A ΔE 0.048
- Dark Grey Blue #29465B ΔE 0.048
- Dark Green Blue #1F6357 ΔE 0.060
Use #055255 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.