#155159
Closest named color: Deep Teal (#00555A). oklch(40.1% 0.06 207.9), rgb(21, 81, 89).
Aa
White text reads best on this color (8.92:1).
About this color
#155159 is a dark, muted teal or cyan. In OKLCH its lightness is 40%, its chroma 0.060 and its hue 208°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.014 away. White text reads best on it, at 8.92:1.
| Hue family | Teals and cyans |
| Lightness | dark (40%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.35:1 |
| White text | 8.92:1 |
Values
| HEX | #155159 |
| RGB | rgb(21, 81, 89) |
| HSL | hsl(187, 62%, 22%) |
| OKLCH | oklch(40.1% 0.06 207.9) |
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 #155159 | 8.92:1 | AAA | Lc -94.6 | Preferred for body text |
| Black text on #155159 | 2.35:1 | Fails | Lc 13.8 | Not readable |
| #155159 text on white | 8.92:1 | AAA | Lc 90.2 | Preferred for body text |
| #155159 text on black | 2.35:1 | Fails | Lc -12.1 | 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
#E0ECEE
oklch(93.5% 0.013 208.8)
-
Step 200
200
#C7DEE2
oklch(88.5% 0.025 209.3)
-
Step 300
300
#9FC9D0
oklch(80.8% 0.045 208.8)
-
Step 400
400
#67AEB8
oklch(70.8% 0.073 207.2)
-
Step 500
500
#3499A7
oklch(63.1% 0.093 208.2)
-
Step 600
600
#008290
oklch(55.5% 0.095 208)
-
Step 700
700
#006E7A
oklch(49.2% 0.085 207.9)
-
Step 800
800
#005A64
oklch(42.8% 0.073 207.9)
-
Step 900
900 (this color)
#155159
oklch(40.1% 0.06 207.9)
-
Step 950
950
#0B2C30
oklch(27.1% 0.038 206.4)
#155159 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) | #494E5A | 0.058 |
| Deuteranopia (no green cones) | #404759 | 0.053 |
| Tritanopia (no blue cones) | #005553 | 0.021 |
| Achromatopsia (no color) | #4A4A4A | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #155159
#155159
oklch(40.1% 0.06 207.9)
- #653B36
#653B36
oklch(40.2% 0.061 27.4)
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 #155159, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.014
- Dark Teal #014D4E ΔE 0.024
- Dark Slate Gray #2F4F4F ΔE 0.025
- Dark Blue Green #005249 ΔE 0.032
- Charcoal #264653 ΔE 0.035
- Dark Grey Blue #29465B ΔE 0.039
- Petrol #005F6A ΔE 0.046
- Charcoal Grey #3C4142 ΔE 0.062
Use #155159 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.