#224351
Closest named color: Charcoal (#264653). oklch(36.4% 0.046 227.6), rgb(34, 67, 81).
Aa
White text reads best on this color (10.55:1).
About this color
#224351 is a dark, muted teal or cyan. In OKLCH its lightness is 36%, its chroma 0.046 and its hue 228°. 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 10.55:1.
| Hue family | Teals and cyans |
| Lightness | dark (36%) |
| Chroma | muted (0.046) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 1.98:1 |
| White text | 10.55:1 |
Values
| HEX | #224351 |
| RGB | rgb(34, 67, 81) |
| HSL | hsl(198, 41%, 23%) |
| OKLCH | oklch(36.4% 0.046 227.6) |
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 #224351 | 10.55:1 | AAA | Lc -98.3 | Preferred for body text |
| Black text on #224351 | 1.98:1 | Fails | Lc 9.5 | Not readable |
| #224351 text on white | 10.55:1 | AAA | Lc 94.4 | Preferred for body text |
| #224351 text on black | 1.98:1 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E3EBEF
oklch(93.5% 0.01 228.9)
-
Step 200
200
#CDDCE3
oklch(88.5% 0.019 227.3)
-
Step 300
300
#ABC6D2
oklch(81% 0.034 226.4)
-
Step 400
400
#7DA8BC
oklch(70.8% 0.055 228.3)
-
Step 500
500
#5A92AB
oklch(63.1% 0.07 228.3)
-
Step 600
600
#3D7C96
oklch(55.5% 0.076 227.5)
-
Step 700
700
#2F6980
oklch(49.2% 0.07 226.9)
-
Step 800
800
#285568
oklch(42.6% 0.059 228.1)
-
Step 900
900 (this color)
#224351
oklch(36.4% 0.046 227.6)
-
Step 950
950
#172932
oklch(27% 0.029 231)
#224351 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) | #3C4252 | 0.035 |
| Deuteranopia (no green cones) | #353D51 | 0.029 |
| Tritanopia (no blue cones) | #044747 | 0.033 |
| Achromatopsia (no color) | #3F3F3F | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #224351
#224351
oklch(36.4% 0.046 227.6)
- #523729
#523729
oklch(36.4% 0.045 48.3)
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 #224351, 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 0.021
- Dark Blue Grey #1F3B4D ΔE 0.027
- Midnight Green #073B4C ΔE 0.037
- Onyx #343A40 ΔE 0.038
- Dark Teal #014D4E ΔE 0.039
- Charcoal Grey #3C4142 ΔE 0.040
- Dark Slate Gray #2F4F4F ΔE 0.046
Use #224351 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.