#454B59
Closest named color: Dark Slate Gray (#2F4F4F). oklch(41.3% 0.025 267), rgb(69, 75, 89).
Aa
White text reads best on this color (8.73:1).
About this color
#454B59 is a dark close to neutral grey. In OKLCH its lightness is 41%, its chroma 0.025. It has too little chroma to lean warm or cool. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.039 away. White text reads best on it, at 8.73:1.
| Hue family | Neutrals |
| Lightness | dark (41%) |
| Chroma | close to neutral grey (0.025) |
| Temperature | neutral |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.40:1 |
| White text | 8.73:1 |
Values
| HEX | #454B59 |
| RGB | rgb(69, 75, 89) |
| HSL | hsl(222, 13%, 31%) |
| OKLCH | oklch(41.3% 0.025 267) |
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 #454B59 | 8.73:1 | AAA | Lc -94.4 | Preferred for body text |
| Black text on #454B59 | 2.40:1 | Fails | Lc 14.0 | Not readable |
| #454B59 text on white | 8.73:1 | AAA | Lc 90.0 | Fine for body text |
| #454B59 text on black | 2.40:1 | Fails | Lc -12.3 | 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 800.
-
Step 50
50
#F5F5F7
oklch(97.1% 0.003 286.4)
-
Step 100
100
#E8EAED
oklch(93.6% 0.005 258.3)
-
Step 200
200
#D7D9DF
oklch(88.6% 0.008 271.3)
-
Step 300
300
#BCC1CA
oklch(81% 0.014 262.4)
-
Step 400
400
#9AA1B0
oklch(70.8% 0.023 265.7)
-
Step 500
500
#81899C
oklch(63% 0.03 267.4)
-
Step 600
600
#6B7387
oklch(55.6% 0.033 268.1)
-
Step 700
700
#596172
oklch(49.2% 0.029 265.4)
-
Step 800
800 (this color)
#454B59
oklch(41.3% 0.025 267)
-
Step 900
900
#3D414C
oklch(37.6% 0.02 269.6)
-
Step 950
950
#24262D
oklch(27% 0.013 272.9)
#454B59 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) | #474C5A | 0.005 |
| Deuteranopia (no green cones) | #454A59 | 0.003 |
| Tritanopia (no blue cones) | #404E50 | 0.022 |
| Achromatopsia (no color) | #4B4B4B | 0.025 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #454B59
#454B59
oklch(41.3% 0.025 267)
- #514A3C
#514A3C
oklch(41.2% 0.024 84.5)
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 #454B59, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.039
- Dark Grey Blue #29465B ΔE 0.044
- Charcoal Grey #3C4142 ΔE 0.047
- Charcoal #264653 ΔE 0.048
- YInMn Blue #415A77 ΔE 0.058
- Dusty Grape #545775 ΔE 0.059
- Deep Teal #00555A ΔE 0.063
- Dusk #4E5481 ΔE 0.069
Use #454B59 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.