#24434F
Closest named color: Charcoal (#264653). oklch(36.4% 0.042 225), rgb(36, 67, 79).
Aa
White text reads best on this color (10.54:1).
About this color
#24434F is a dark, muted teal or cyan. In OKLCH its lightness is 36%, its chroma 0.042 and its hue 225°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal (#264653), ΔE 0.011 away. White text reads best on it, at 10.54:1.
| Hue family | Teals and cyans |
| Lightness | dark (36%) |
| Chroma | muted (0.042) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 1.99:1 |
| White text | 10.54:1 |
Values
| HEX | #24434F |
| RGB | rgb(36, 67, 79) |
| HSL | hsl(197, 37%, 23%) |
| OKLCH | oklch(36.4% 0.042 225) |
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 #24434F | 10.54:1 | AAA | Lc -98.4 | Preferred for body text |
| Black text on #24434F | 1.99:1 | Fails | Lc 9.5 | Not readable |
| #24434F text on white | 10.54:1 | AAA | Lc 94.4 | Preferred for body text |
| #24434F text on black | 1.99:1 | Fails | Lc -8.2 | 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 900.
-
Step 50
50
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E4EBEE
oklch(93.6% 0.009 225.1)
-
Step 200
200
#CEDCE2
oklch(88.6% 0.017 225.2)
-
Step 300
300
#ACC5D0
oklch(80.8% 0.031 226.1)
-
Step 400
400
#7FA8B9
oklch(70.8% 0.051 225.3)
-
Step 500
500
#5D92A7
oklch(63.1% 0.064 225.1)
-
Step 600
600
#417C92
oklch(55.5% 0.07 224.6)
-
Step 700
700
#33697D
oklch(49.2% 0.065 224.8)
-
Step 800
800
#2B5565
oklch(42.6% 0.054 225.1)
-
Step 900
900 (this color)
#24434F
oklch(36.4% 0.042 225)
-
Step 950
950
#182930
oklch(26.9% 0.026 225.8)
#24434F 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) | #3C4250 | 0.032 |
| Deuteranopia (no green cones) | #363D4F | 0.029 |
| Tritanopia (no blue cones) | #0D4747 | 0.029 |
| Achromatopsia (no color) | #3F3F3F | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #24434F
#24434F
oklch(36.4% 0.042 225)
- #51372C
#51372C
oklch(36.4% 0.042 43.8)
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 #24434F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.011
- Dark Grey Blue #29465B ΔE 0.023
- Dark Blue Grey #1F3B4D ΔE 0.028
- Onyx #343A40 ΔE 0.036
- Charcoal Grey #3C4142 ΔE 0.036
- Dark Teal #014D4E ΔE 0.038
- Midnight Green #073B4C ΔE 0.039
- Dark Slate Gray #2F4F4F ΔE 0.044
Use #24434F 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.