#454E58
Closest named color: Dark Slate Gray (#2F4F4F). oklch(42% 0.02 251.1), rgb(69, 78, 88).
Aa
White text reads best on this color (8.45:1).
About this color
#454E58 is a dark close to neutral grey. In OKLCH its lightness is 42%, its chroma 0.020. It has too little chroma to lean warm or cool. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.035 away. White text reads best on it, at 8.45:1.
| Hue family | Neutrals |
| Lightness | dark (42%) |
| Chroma | close to neutral grey (0.020) |
| Temperature | neutral |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.48:1 |
| White text | 8.45:1 |
Values
| HEX | #454E58 |
| RGB | rgb(69, 78, 88) |
| HSL | hsl(212, 12%, 31%) |
| OKLCH | oklch(42% 0.02 251.1) |
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 #454E58 | 8.45:1 | AAA | Lc -93.7 | Preferred for body text |
| Black text on #454E58 | 2.48:1 | Fails | Lc 14.8 | Not readable |
| #454E58 text on white | 8.45:1 | AAA | Lc 89.1 | Fine for body text |
| #454E58 text on black | 2.48:1 | Fails | Lc -13.1 | 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 800.
-
Step 50
50
#F5F5F6
oklch(97% 0.001 286.4)
-
Step 100
100
#E8EAEC
oklch(93.6% 0.003 247.9)
-
Step 200
200
#D6D9DD
oklch(88.4% 0.006 255.5)
-
Step 300
300
#BBC1C8
oklch(80.8% 0.012 252.1)
-
Step 400
400
#98A2AC
oklch(70.7% 0.019 248.1)
-
Step 500
500
#7F8B98
oklch(63.1% 0.024 250.3)
-
Step 600
600
#687583
oklch(55.7% 0.027 250.3)
-
Step 700
700
#57626F
oklch(49.1% 0.025 252.7)
-
Step 800
800 (this color)
#454E58
oklch(42% 0.02 251.1)
-
Step 900
900
#3C424A
oklch(37.7% 0.016 255.6)
-
Step 950
950
#23272B
oklch(27% 0.009 248.2)
#454E58 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) | #4A4E59 | 0.008 |
| Deuteranopia (no green cones) | #484C58 | 0.007 |
| Tritanopia (no blue cones) | #405051 | 0.017 |
| Achromatopsia (no color) | #4D4D4D | 0.020 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #454E58
#454E58
oklch(42% 0.02 251.1)
- #544B41
#544B41
oklch(41.9% 0.02 70.2)
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 #454E58, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.035
- Dark Grey Blue #29465B ΔE 0.049
- Charcoal Grey #3C4142 ΔE 0.051
- Charcoal #264653 ΔE 0.052
- YInMn Blue #415A77 ΔE 0.054
- Dusty Grape #545775 ΔE 0.057
- Deep Teal #00555A ΔE 0.059
- Dark Teal #014D4E ΔE 0.067
Use #454E58 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.