#255753
Closest named color: Deep Teal (#00555A). oklch(42.1% 0.054 188.3), rgb(37, 87, 83).
Aa
White text reads best on this color (8.18:1).
About this color
#255753 is a dark, muted teal or cyan. In OKLCH its lightness is 42%, its chroma 0.054 and its hue 188°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.024 away. White text reads best on it, at 8.18:1.
| Hue family | Teals and cyans |
| Lightness | dark (42%) |
| Chroma | muted (0.054) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.56:1 |
| White text | 8.18:1 |
Values
| HEX | #255753 |
| RGB | rgb(37, 87, 83) |
| HSL | hsl(175, 40%, 24%) |
| OKLCH | oklch(42.1% 0.054 188.3) |
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 #255753 | 8.18:1 | AAA | Lc -92.8 | Preferred for body text |
| Black text on #255753 | 2.56:1 | Fails | Lc 15.9 | Dividers and decoration only |
| #255753 text on white | 8.18:1 | AAA | Lc 88.1 | Fine for body text |
| #255753 text on black | 2.56:1 | Fails | Lc -14.0 | 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
#E3ECEB
oklch(93.6% 0.01 189.1)
-
Step 200
200
#CDDDDB
oklch(88.5% 0.017 187.8)
-
Step 300
300
#AAC8C4
oklch(80.9% 0.033 186.7)
-
Step 400
400
#7CABA6
oklch(70.6% 0.051 187.9)
-
Step 500
500
#599691
oklch(63% 0.064 189)
-
Step 600
600
#3C817B
oklch(55.7% 0.07 187.8)
-
Step 700
700
#2D6D68
oklch(49.2% 0.066 188.3)
-
Step 800
800 (this color)
#255753
oklch(42.1% 0.054 188.3)
-
Step 900
900
#254946
oklch(37.7% 0.042 188.6)
-
Step 950
950
#162B29
oklch(27.1% 0.027 187.9)
#255753 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) | #525353 | 0.057 |
| Deuteranopia (no green cones) | #4A4D54 | 0.053 |
| Tritanopia (no blue cones) | #015956 | 0.018 |
| Achromatopsia (no color) | #4F4F4F | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #255753
#255753
oklch(42.1% 0.054 188.3)
- #674147
#674147
oklch(42.1% 0.054 9.3)
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 #255753, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.024
- Dark Slate Gray #2F4F4F ΔE 0.025
- Dark Blue Green #005249 ΔE 0.033
- Dark Green Blue #1F6357 ΔE 0.038
- Petrol #005F6A ΔE 0.039
- Dark Teal #014D4E ΔE 0.042
- Charcoal #264653 ΔE 0.057
- Pine #2B5D34 ΔE 0.058
Use #255753 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.