#223833
Closest named color: Onyx (#343A40). oklch(32% 0.029 178.4), rgb(34, 56, 51).
Aa
White text reads best on this color (12.48:1).
About this color
#223833 is a dark close to neutral grey. In OKLCH its lightness is 32%, its chroma 0.029. It has too little chroma to lean warm or cool. The nearest named color is Onyx (#343A40), ΔE 0.037 away. White text reads best on it, at 12.48:1.
| Hue family | Neutrals |
| Lightness | dark (32%) |
| Chroma | close to neutral grey (0.029) |
| Temperature | neutral |
| Nearest name | Onyx (#343A40) |
| Black text | 1.68:1 |
| White text | 12.48:1 |
Values
| HEX | #223833 |
| RGB | rgb(34, 56, 51) |
| HSL | hsl(166, 24%, 18%) |
| OKLCH | oklch(32% 0.029 178.4) |
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 #223833 | 12.48:1 | AAA | Lc -101.8 | Preferred for body text |
| Black text on #223833 | 1.68:1 | Fails | Lc 0.0 | Not readable |
| #223833 text on white | 12.48:1 | AAA | Lc 98.4 | Preferred for body text |
| #223833 text on black | 1.68:1 | 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
#E3ECEA
oklch(93.6% 0.01 181.4)
-
Step 200
200
#CCDED9
oklch(88.6% 0.02 177.4)
-
Step 300
300
#AAC8C1
oklch(80.9% 0.034 179.7)
-
Step 400
400
#7BACA1
oklch(70.6% 0.055 179.2)
-
Step 500
500
#56988A
oklch(63.1% 0.071 178.6)
-
Step 600
600
#388274
oklch(55.6% 0.077 179)
-
Step 700
700
#2A6E61
oklch(49.1% 0.072 178.5)
-
Step 800
800
#245A4F
oklch(42.8% 0.06 177.8)
-
Step 900
900
#234A42
oklch(37.8% 0.047 178.6)
-
Step 950
950 (this color)
#223833
oklch(32% 0.029 178.4)
#223833 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) | #363533 | 0.031 |
| Deuteranopia (no green cones) | #323333 | 0.028 |
| Tritanopia (no blue cones) | #1B3936 | 0.009 |
| Achromatopsia (no color) | #343434 | 0.030 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #223833
#223833
oklch(32% 0.029 178.4)
- #402D33
#402D33
oklch(32.1% 0.03 358.2)
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 #223833, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.037
- Gunmetal #293241 ΔE 0.039
- Pakistan Green #283618 ΔE 0.041
- Dark Blue Grey #1F3B4D ΔE 0.045
- Midnight Green #073B4C ΔE 0.045
- Space Cadet #2B2D42 ΔE 0.055
- Charcoal Grey #3C4142 ΔE 0.056
- Evergreen #05472A ΔE 0.062
Use #223833 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.