#33454C
Closest named color: Charcoal (#264653). oklch(37.8% 0.026 223.7), rgb(51, 69, 76).
Aa
White text reads best on this color (10.01:1).
About this color
#33454C is a dark close to neutral grey. In OKLCH its lightness is 38%, its chroma 0.026. It has too little chroma to lean warm or cool. The nearest named color is Charcoal (#264653), ΔE 0.018 away. White text reads best on it, at 10.01:1.
| Hue family | Neutrals |
| Lightness | dark (38%) |
| Chroma | close to neutral grey (0.026) |
| Temperature | neutral |
| Nearest name | Charcoal (#264653) |
| Black text | 2.09:1 |
| White text | 10.01:1 |
Values
| HEX | #33454C |
| RGB | rgb(51, 69, 76) |
| HSL | hsl(197, 20%, 25%) |
| OKLCH | oklch(37.8% 0.026 223.7) |
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 #33454C | 10.01:1 | AAA | Lc -97.4 | Preferred for body text |
| Black text on #33454C | 2.09:1 | Fails | Lc 10.7 | Not readable |
| #33454C text on white | 10.01:1 | AAA | Lc 93.2 | Preferred for body text |
| #33454C text on black | 2.09:1 | Fails | Lc -9.2 | 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
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E6EBED
oklch(93.7% 0.006 223.5)
-
Step 200
200
#D2DBDE
oklch(88.5% 0.011 219.6)
-
Step 300
300
#B4C4CA
oklch(81% 0.019 222.2)
-
Step 400
400
#8DA5AF
oklch(70.7% 0.031 224.9)
-
Step 500
500
#708F9B
oklch(63.1% 0.039 223.5)
-
Step 600
600
#587986
oklch(55.6% 0.043 224.2)
-
Step 700
700
#486672
oklch(49.2% 0.04 224.7)
-
Step 800
800
#3B535C
oklch(42.6% 0.033 223.1)
-
Step 900
900 (this color)
#33454C
oklch(37.8% 0.026 223.7)
-
Step 950
950
#1E282C
oklch(26.9% 0.016 224.2)
#33454C 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) | #41444C | 0.021 |
| Deuteranopia (no green cones) | #3D414C | 0.019 |
| Tritanopia (no blue cones) | #2B4747 | 0.017 |
| Achromatopsia (no color) | #424242 | 0.026 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #33454C
#33454C
oklch(37.8% 0.026 223.7)
- #4E3E37
#4E3E37
oklch(37.9% 0.025 44.9)
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 #33454C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.018
- Charcoal Grey #3C4142 ΔE 0.020
- Dark Grey Blue #29465B ΔE 0.027
- Dark Slate Gray #2F4F4F ΔE 0.032
- Onyx #343A40 ΔE 0.036
- Dark Teal #014D4E ΔE 0.043
- Dark Blue Grey #1F3B4D ΔE 0.045
- Dark Blue Green #005249 ΔE 0.056
Use #33454C 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.