#155353
Closest named color: Deep Teal (#00555A). oklch(40.4% 0.061 195), rgb(21, 83, 83).
Aa
White text reads best on this color (8.77:1).
About this color
#155353 is a dark, muted teal or cyan. In OKLCH its lightness is 40%, its chroma 0.061 and its hue 195°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.013 away. White text reads best on it, at 8.77:1.
| Hue family | Teals and cyans |
| Lightness | dark (40%) |
| Chroma | muted (0.061) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.39:1 |
| White text | 8.77:1 |
Values
| HEX | #155353 |
| RGB | rgb(21, 83, 83) |
| HSL | hsl(180, 60%, 20%) |
| OKLCH | oklch(40.4% 0.061 195) |
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 #155353 | 8.77:1 | AAA | Lc -94.2 | Preferred for body text |
| Black text on #155353 | 2.39:1 | Fails | Lc 14.2 | Not readable |
| #155353 text on white | 8.77:1 | AAA | Lc 89.8 | Fine for body text |
| #155353 text on black | 2.39:1 | Fails | Lc -12.5 | 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
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E2ECEC
oklch(93.6% 0.011 197)
-
Step 200
200
#CBDDDD
oklch(88.4% 0.019 196.8)
-
Step 300
300
#A7C8C8
oklch(80.9% 0.035 196.5)
-
Step 400
400
#76ACAB
oklch(70.7% 0.057 194.5)
-
Step 500
500
#4F9797
oklch(63% 0.072 195.5)
-
Step 600
600
#2E8282
oklch(55.7% 0.079 195.1)
-
Step 700
700
#1F6E6E
oklch(49.2% 0.074 195)
-
Step 800
800 (this color)
#155353
oklch(40.4% 0.061 195)
-
Step 900
900
#1F4949
oklch(37.6% 0.047 195.3)
-
Step 950
950
#132B2B
oklch(27% 0.03 195.5)
#155353 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) | #4D4F53 | 0.063 |
| Deuteranopia (no green cones) | #444853 | 0.059 |
| Tritanopia (no blue cones) | #005653 | 0.012 |
| Achromatopsia (no color) | #4B4B4B | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #155353
#155353
oklch(40.4% 0.061 195)
- #663B3E
#663B3E
oklch(40.5% 0.061 15.6)
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 #155353, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.013
- Dark Blue Green #005249 ΔE 0.020
- Dark Slate Gray #2F4F4F ΔE 0.023
- Dark Teal #014D4E ΔE 0.024
- Charcoal #264653 ΔE 0.044
- Petrol #005F6A ΔE 0.046
- Dark Grey Blue #29465B ΔE 0.050
- Dark Green Blue #1F6357 ΔE 0.053
Use #155353 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.