#31454A
Closest named color: Charcoal (#264653). oklch(37.6% 0.027 214.9), rgb(49, 69, 74).
Aa
White text reads best on this color (10.09:1).
About this color
#31454A is a dark close to neutral grey. In OKLCH its lightness is 38%, its chroma 0.027. It has too little chroma to lean warm or cool. The nearest named color is Charcoal (#264653), ΔE 0.019 away. White text reads best on it, at 10.09:1.
| Hue family | Neutrals |
| Lightness | dark (38%) |
| Chroma | close to neutral grey (0.027) |
| Temperature | neutral |
| Nearest name | Charcoal (#264653) |
| Black text | 2.08:1 |
| White text | 10.09:1 |
Values
| HEX | #31454A |
| RGB | rgb(49, 69, 74) |
| HSL | hsl(192, 20%, 24%) |
| OKLCH | oklch(37.6% 0.027 214.9) |
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 #31454A | 10.09:1 | AAA | Lc -97.5 | Preferred for body text |
| Black text on #31454A | 2.08:1 | Fails | Lc 10.5 | Not readable |
| #31454A text on white | 10.09:1 | AAA | Lc 93.4 | Preferred for body text |
| #31454A text on black | 2.08:1 | Fails | Lc -9.1 | 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
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E6EBEC
oklch(93.7% 0.006 211)
-
Step 200
200
#D1DBDE
oklch(88.5% 0.012 217.6)
-
Step 300
300
#B3C4C9
oklch(80.9% 0.02 217.3)
-
Step 400
400
#8BA6AD
oklch(70.7% 0.032 215.2)
-
Step 500
500
#6E9099
oklch(63.1% 0.04 215.8)
-
Step 600
600
#557A84
oklch(55.5% 0.044 216.4)
-
Step 700
700
#45676F
oklch(49.1% 0.041 214)
-
Step 800
800
#39545B
oklch(42.7% 0.034 215.7)
-
Step 900
900 (this color)
#31454A
oklch(37.6% 0.027 214.9)
-
Step 950
950
#1D292C
oklch(27.1% 0.017 214.8)
#31454A 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) | #41444A | 0.024 |
| Deuteranopia (no green cones) | #3D404A | 0.023 |
| Tritanopia (no blue cones) | #294746 | 0.015 |
| Achromatopsia (no color) | #424242 | 0.027 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31454A
#31454A
oklch(37.6% 0.027 214.9)
- #4E3C38
#4E3C38
oklch(37.4% 0.026 32.7)
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 #31454A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.019
- Charcoal Grey #3C4142 ΔE 0.020
- Dark Grey Blue #29465B ΔE 0.029
- Dark Slate Gray #2F4F4F ΔE 0.031
- Onyx #343A40 ΔE 0.035
- Dark Teal #014D4E ΔE 0.041
- Dark Blue Grey #1F3B4D ΔE 0.044
- Dark Blue Green #005249 ΔE 0.053
Use #31454A 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.