#455763
Closest named color: YInMn Blue (#415A77). oklch(44.6% 0.03 237.5), rgb(69, 87, 99).
Aa
White text reads best on this color (7.50:1).
About this color
#455763 is a dark close to neutral grey. In OKLCH its lightness is 45%, its chroma 0.030. It has too little chroma to lean warm or cool. The nearest named color is YInMn Blue (#415A77), ΔE 0.032 away. White text reads best on it, at 7.50:1.
| Hue family | Neutrals |
| Lightness | dark (45%) |
| Chroma | close to neutral grey (0.030) |
| Temperature | neutral |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.79:1 |
| White text | 7.50:1 |
Values
| HEX | #455763 |
| RGB | rgb(69, 87, 99) |
| HSL | hsl(204, 18%, 33%) |
| OKLCH | oklch(44.6% 0.03 237.5) |
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 #455763 | 7.50:1 | AAA | Lc -90.9 | Preferred for body text |
| Black text on #455763 | 2.79:1 | Fails | Lc 17.9 | Dividers and decoration only |
| #455763 text on white | 7.50:1 | AAA | Lc 86.1 | Fine for body text |
| #455763 text on black | 2.79:1 | Fails | Lc -16.0 | Dividers and decoration only |
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
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E7EAED
oklch(93.6% 0.005 247.9)
-
Step 200
200
#D3DADF
oklch(88.4% 0.01 238.5)
-
Step 300
300
#B7C3CB
oklch(81% 0.017 236.7)
-
Step 400
400
#91A4B0
oklch(70.8% 0.028 235.5)
-
Step 500
500
#768D9D
oklch(63.1% 0.036 238.5)
-
Step 600
600
#5E7788
oklch(55.6% 0.039 238.1)
-
Step 700
700
#4E6473
oklch(49.1% 0.036 238.3)
-
Step 800
800 (this color)
#455763
oklch(44.6% 0.03 237.5)
-
Step 900
900
#36444D
oklch(37.8% 0.024 236.5)
-
Step 950
950
#20282D
oklch(27.1% 0.015 235.5)
#455763 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) | #525664 | 0.019 |
| Deuteranopia (no green cones) | #4E5363 | 0.017 |
| Tritanopia (no blue cones) | #3C5A5B | 0.022 |
| Achromatopsia (no color) | #555555 | 0.030 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #455763
#455763
oklch(44.6% 0.03 237.5)
- #615044
#615044
oklch(44.5% 0.03 57.1)
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 #455763, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.032
- Dusty Grape #545775 ΔE 0.039
- Slate #516572 ΔE 0.049
- Dark Slate Gray #2F4F4F ΔE 0.050
- Petrol #005F6A ΔE 0.053
- Dusk #4E5481 ΔE 0.056
- Dark Green Blue #1F6357 ΔE 0.061
- Deep Teal #00555A ΔE 0.061
Use #455763 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.