#223933
Closest named color: Onyx (#343A40). oklch(32.3% 0.031 176), rgb(34, 57, 51).
Aa
White text reads best on this color (12.34:1).
About this color
#223933 is a dark, muted teal or cyan. In OKLCH its lightness is 32%, its chroma 0.031 and its hue 176°. Its hue sits on the cool side of the wheel. The nearest named color is Onyx (#343A40), ΔE 0.037 away. White text reads best on it, at 12.34:1.
| Hue family | Teals and cyans |
| Lightness | dark (32%) |
| Chroma | muted (0.031) |
| Temperature | cool |
| Nearest name | Onyx (#343A40) |
| Black text | 1.70:1 |
| White text | 12.34:1 |
Values
| HEX | #223933 |
| RGB | rgb(34, 57, 51) |
| HSL | hsl(164, 25%, 18%) |
| OKLCH | oklch(32.3% 0.031 176) |
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 #223933 | 12.34:1 | AAA | Lc -101.5 | Preferred for body text |
| Black text on #223933 | 1.70:1 | Fails | Lc 0.0 | Not readable |
| #223933 text on white | 12.34:1 | AAA | Lc 98.1 | Preferred for body text |
| #223933 text on black | 1.70:1 | Fails | Lc 0.0 | 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 950.
-
Step 50
50
#F2F6F5
oklch(97% 0.004 179.7)
-
Step 100
100
#E3ECE9
oklch(93.5% 0.01 174.3)
-
Step 200
200
#CCDED8
oklch(88.5% 0.021 173.9)
-
Step 300
300
#A9C9C0
oklch(81% 0.037 176.5)
-
Step 400
400
#79AD9F
oklch(70.7% 0.059 175.9)
-
Step 500
500
#549988
oklch(63.2% 0.075 175.9)
-
Step 600
600
#358371
oklch(55.6% 0.082 175.5)
-
Step 700
700
#266F5F
oklch(49.2% 0.076 175.8)
-
Step 800
800
#225A4E
oklch(42.7% 0.062 176.8)
-
Step 900
900
#224A41
oklch(37.7% 0.048 177)
-
Step 950
950 (this color)
#223933
oklch(32.3% 0.031 176)
#223933 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) | #373633 | 0.032 |
| Deuteranopia (no green cones) | #333333 | 0.031 |
| Tritanopia (no blue cones) | #1B3A37 | 0.009 |
| Achromatopsia (no color) | #353535 | 0.032 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #223933
#223933
oklch(32.3% 0.031 176)
- #412D34
#412D34
oklch(32.3% 0.031 356.2)
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 #223933, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.037
- Pakistan Green #283618 ΔE 0.040
- Gunmetal #293241 ΔE 0.042
- Dark Blue Grey #1F3B4D ΔE 0.045
- Midnight Green #073B4C ΔE 0.046
- Charcoal Grey #3C4142 ΔE 0.054
- Space Cadet #2B2D42 ΔE 0.057
- Evergreen #05472A ΔE 0.059
Use #223933 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.