#224347
Closest named color: Charcoal (#264653). oklch(36% 0.039 205.7), rgb(34, 67, 71).
Aa
White text reads best on this color (10.70:1).
About this color
#224347 is a dark, muted teal or cyan. In OKLCH its lightness is 36%, its chroma 0.039 and its hue 206°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal (#264653), ΔE 0.022 away. White text reads best on it, at 10.70:1.
| Hue family | Teals and cyans |
| Lightness | dark (36%) |
| Chroma | muted (0.039) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 1.96:1 |
| White text | 10.70:1 |
Values
| HEX | #224347 |
| RGB | rgb(34, 67, 71) |
| HSL | hsl(186, 35%, 21%) |
| OKLCH | oklch(36% 0.039 205.7) |
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 #224347 | 10.70:1 | AAA | Lc -98.6 | Preferred for body text |
| Black text on #224347 | 1.96:1 | Fails | Lc 9.2 | Not readable |
| #224347 text on white | 10.70:1 | AAA | Lc 94.7 | Preferred for body text |
| #224347 text on black | 1.96:1 | Fails | Lc -7.9 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E4ECEC
oklch(93.7% 0.009 197)
-
Step 200
200
#CDDCDE
oklch(88.4% 0.016 206.4)
-
Step 300
300
#ACC6CA
oklch(80.8% 0.029 207.8)
-
Step 400
400
#7EA9AF
oklch(70.6% 0.047 206.8)
-
Step 500
500
#5C949B
oklch(63% 0.06 205.9)
-
Step 600
600
#407E86
oklch(55.5% 0.065 206.5)
-
Step 700
700
#316B71
oklch(49.2% 0.061 204.4)
-
Step 800
800
#2A575C
oklch(42.7% 0.05 205)
-
Step 900
900 (this color)
#224347
oklch(36% 0.039 205.7)
-
Step 950
950
#172A2C
oklch(27% 0.025 204.3)
#224347 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) | #3E4147 | 0.038 |
| Deuteranopia (no green cones) | #383C47 | 0.035 |
| Tritanopia (no blue cones) | #0E4544 | 0.019 |
| Achromatopsia (no color) | #3E3E3E | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #224347
#224347
oklch(36% 0.039 205.7)
- #503532
#503532
oklch(36% 0.04 26.3)
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 #224347, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.022
- Dark Blue Grey #1F3B4D ΔE 0.033
- Onyx #343A40 ΔE 0.034
- Dark Teal #014D4E ΔE 0.034
- Charcoal Grey #3C4142 ΔE 0.034
- Dark Grey Blue #29465B ΔE 0.036
- Midnight Green #073B4C ΔE 0.040
- Dark Slate Gray #2F4F4F ΔE 0.044
Use #224347 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.