#055161
Closest named color: Deep Teal (#00555A). oklch(40.2% 0.07 217.5), rgb(5, 81, 97).
Aa
White text reads best on this color (8.91:1).
About this color
#055161 is a dark, moderately saturated teal or cyan. In OKLCH its lightness is 40%, its chroma 0.070 and its hue 217°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.021 away. White text reads best on it, at 8.91:1.
| Hue family | Teals and cyans |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.070) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.35:1 |
| White text | 8.91:1 |
Values
| HEX | #055161 |
| RGB | rgb(5, 81, 97) |
| HSL | hsl(190, 90%, 20%) |
| OKLCH | oklch(40.2% 0.07 217.5) |
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 #055161 | 8.91:1 | AAA | Lc -94.5 | Preferred for body text |
| Black text on #055161 | 2.35:1 | Fails | Lc 14.0 | Not readable |
| #055161 text on white | 8.91:1 | AAA | Lc 90.0 | Fine for body text |
| #055161 text on black | 2.35:1 | Fails | Lc -12.3 | 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
#F0F7F9
oklch(97.1% 0.008 216.6)
-
Step 100
100
#DFEDF1
oklch(93.7% 0.016 216.7)
-
Step 200
200
#C5DEE6
oklch(88.5% 0.029 219)
-
Step 300
300
#9BCAD7
oklch(81% 0.052 216.6)
-
Step 400
400
#5EAEC3
oklch(70.8% 0.084 216.9)
-
Step 500
500
#1B99B4
oklch(63.2% 0.108 217.1)
-
Step 600
600
#00819A
oklch(55.7% 0.1 217.7)
-
Step 700
700
#006C81
oklch(49% 0.088 217.4)
-
Step 800
800
#00596A
oklch(42.8% 0.076 216.6)
-
Step 900
900 (this color)
#055161
oklch(40.2% 0.07 217.5)
-
Step 950
950
#052C35
oklch(27.2% 0.045 217.1)
#055161 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) | #474E62 | 0.061 |
| Deuteranopia (no green cones) | #3B4661 | 0.054 |
| Tritanopia (no blue cones) | #005656 | 0.029 |
| Achromatopsia (no color) | #4A4A4A | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #055161
#055161
oklch(40.2% 0.07 217.5)
- #683A2C
#683A2C
oklch(40.2% 0.069 37.7)
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 #055161, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.021
- Dark Teal #014D4E ΔE 0.033
- Dark Slate Gray #2F4F4F ΔE 0.038
- Dark Grey Blue #29465B ΔE 0.038
- Charcoal #264653 ΔE 0.038
- Dark Blue Green #005249 ΔE 0.043
- Petrol #005F6A ΔE 0.044
- Deep Sea Blue #015482 ΔE 0.055
Use #055161 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.