#245455
Closest named color: Dark Slate Gray (#2F4F4F). oklch(41.3% 0.052 197.2), rgb(36, 84, 85).
Aa
White text reads best on this color (8.48:1).
About this color
#245455 is a dark, muted teal or cyan. In OKLCH its lightness is 41%, its chroma 0.052 and its hue 197°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.018 away. White text reads best on it, at 8.48:1.
| Hue family | Teals and cyans |
| Lightness | dark (41%) |
| Chroma | muted (0.052) |
| Temperature | cool |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.47:1 |
| White text | 8.48:1 |
Values
| HEX | #245455 |
| RGB | rgb(36, 84, 85) |
| HSL | hsl(181, 40%, 24%) |
| OKLCH | oklch(41.3% 0.052 197.2) |
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 #245455 | 8.48:1 | AAA | Lc -93.6 | Preferred for body text |
| Black text on #245455 | 2.47:1 | Fails | Lc 14.9 | Not readable |
| #245455 text on white | 8.48:1 | AAA | Lc 89.1 | Fine for body text |
| #245455 text on black | 2.47:1 | Fails | Lc -13.2 | 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
#E4ECEC
oklch(93.7% 0.009 197)
-
Step 200
200
#CDDDDD
oklch(88.6% 0.017 196.8)
-
Step 300
300
#ABC7C7
oklch(80.9% 0.03 196.6)
-
Step 400
400
#7DAAAB
oklch(70.6% 0.048 197.8)
-
Step 500
500
#5A9596
oklch(63% 0.062 197.1)
-
Step 600
600
#3D8081
oklch(55.7% 0.068 196.7)
-
Step 700
700
#2F6C6D
oklch(49.2% 0.063 196.8)
-
Step 800
800 (this color)
#245455
oklch(41.3% 0.052 197.2)
-
Step 900
900
#264849
oklch(37.6% 0.04 198.1)
-
Step 950
950
#172A2B
oklch(26.9% 0.025 200)
#245455 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) | #4F5055 | 0.054 |
| Deuteranopia (no green cones) | #464A55 | 0.050 |
| Tritanopia (no blue cones) | #005754 | 0.020 |
| Achromatopsia (no color) | #4D4D4D | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #245455
#245455
oklch(41.3% 0.052 197.2)
- #654041
#654041
oklch(41.5% 0.052 17.8)
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 #245455, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.018
- Deep Teal #00555A ΔE 0.019
- Dark Blue Green #005249 ΔE 0.031
- Dark Teal #014D4E ΔE 0.035
- Petrol #005F6A ΔE 0.041
- Charcoal #264653 ΔE 0.046
- Dark Green Blue #1F6357 ΔE 0.048
- Dark Grey Blue #29465B ΔE 0.050
Use #245455 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.