#155453
Closest named color: Deep Teal (#00555A). oklch(40.7% 0.061 193.5), rgb(21, 84, 83).
Aa
White text reads best on this color (8.66:1).
About this color
#155453 is a dark, muted teal or cyan. In OKLCH its lightness is 41%, its chroma 0.061 and its hue 193°. 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 8.66:1.
| Hue family | Teals and cyans |
| Lightness | dark (41%) |
| Chroma | muted (0.061) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.42:1 |
| White text | 8.66:1 |
Values
| HEX | #155453 |
| RGB | rgb(21, 84, 83) |
| HSL | hsl(179, 60%, 21%) |
| OKLCH | oklch(40.7% 0.061 193.5) |
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 #155453 | 8.66:1 | AAA | Lc -94.0 | Preferred for body text |
| Black text on #155453 | 2.42:1 | Fails | Lc 14.5 | Not readable |
| #155453 text on white | 8.66:1 | AAA | Lc 89.4 | Fine for body text |
| #155453 text on black | 2.42:1 | Fails | Lc -12.8 | 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
#CBDEDD
oklch(88.6% 0.02 193)
-
Step 300
300
#A7C8C7
oklch(80.8% 0.035 194.2)
-
Step 400
400
#76ACAB
oklch(70.7% 0.057 194.5)
-
Step 500
500
#4E9896
oklch(63.2% 0.074 193.1)
-
Step 600
600
#2D8280
oklch(55.6% 0.08 192.9)
-
Step 700
700
#1E6E6D
oklch(49.2% 0.074 193.8)
-
Step 800
800 (this color)
#155453
oklch(40.7% 0.061 193.5)
-
Step 900
900
#1E4A49
oklch(37.8% 0.048 193.3)
-
Step 950
950
#132B2B
oklch(27% 0.03 195.5)
#155453 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) | #4E4F53 | 0.064 |
| Deuteranopia (no green cones) | #454953 | 0.059 |
| Tritanopia (no blue cones) | #005754 | 0.011 |
| Achromatopsia (no color) | #4B4B4B | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #155453
#155453
oklch(40.7% 0.061 193.5)
- #673B40
#673B40
oklch(40.7% 0.062 12.9)
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 #155453, 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 0.021
- Dark Slate Gray #2F4F4F ΔE 0.024
- Dark Teal #014D4E ΔE 0.027
- Petrol #005F6A ΔE 0.044
- Charcoal #264653 ΔE 0.047
- Dark Green Blue #1F6357 ΔE 0.050
- Dark Grey Blue #29465B ΔE 0.053
Use #155453 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.