#245757
Closest named color: Deep Teal (#00555A). oklch(42.2% 0.054 195.3), rgb(36, 87, 87).
Aa
White text reads best on this color (8.15:1).
About this color
#245757 is a dark, muted teal or cyan. In OKLCH its lightness is 42%, its chroma 0.054 and its hue 195°. 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 8.15:1.
| Hue family | Teals and cyans |
| Lightness | dark (42%) |
| Chroma | muted (0.054) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.57:1 |
| White text | 8.15:1 |
Values
| HEX | #245757 |
| RGB | rgb(36, 87, 87) |
| HSL | hsl(180, 41%, 24%) |
| OKLCH | oklch(42.2% 0.054 195.3) |
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 #245757 | 8.15:1 | AAA | Lc -92.7 | Preferred for body text |
| Black text on #245757 | 2.57:1 | Fails | Lc 16.0 | Dividers and decoration only |
| #245757 text on white | 8.15:1 | AAA | Lc 88.0 | Fine for body text |
| #245757 text on black | 2.57:1 | Fails | Lc -14.1 | 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 800.
-
Step 50
50
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E3ECEC
oklch(93.6% 0.01 197)
-
Step 200
200
#CDDDDD
oklch(88.6% 0.017 196.8)
-
Step 300
300
#AAC7C7
oklch(80.8% 0.031 196.6)
-
Step 400
400
#7BABAA
oklch(70.7% 0.051 194.4)
-
Step 500
500
#579696
oklch(63.1% 0.065 195.6)
-
Step 600
600
#3A8080
oklch(55.5% 0.07 195.3)
-
Step 700
700
#2B6C6C
oklch(49% 0.065 195.2)
-
Step 800
800 (this color)
#245757
oklch(42.2% 0.054 195.3)
-
Step 900
900
#244949
oklch(37.8% 0.042 195.5)
-
Step 950
950
#162B2B
oklch(27.2% 0.027 195.7)
#245757 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) | #525357 | 0.057 |
| Deuteranopia (no green cones) | #494D57 | 0.052 |
| Tritanopia (no blue cones) | #005A57 | 0.019 |
| Achromatopsia (no color) | #4F4F4F | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #245757
#245757
oklch(42.2% 0.054 195.3)
- #684144
#684144
oklch(42.2% 0.055 14.6)
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 #245757, 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 Slate Gray #2F4F4F ΔE 0.026
- Petrol #005F6A ΔE 0.034
- Dark Blue Green #005249 ΔE 0.036
- Dark Green Blue #1F6357 ΔE 0.039
- Dark Teal #014D4E ΔE 0.043
- Charcoal #264653 ΔE 0.055
- Dark Aqua #05696B ΔE 0.056
Use #245757 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.