#455263
Closest named color: YInMn Blue (#415A77). oklch(43.4% 0.033 255.2), rgb(69, 82, 99).
Aa
White text reads best on this color (7.95:1).
About this color
#455263 is a dark, muted blue. In OKLCH its lightness is 43%, its chroma 0.033 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.035 away. White text reads best on it, at 7.95:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | muted (0.033) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.64:1 |
| White text | 7.95:1 |
Values
| HEX | #455263 |
| RGB | rgb(69, 82, 99) |
| HSL | hsl(214, 18%, 33%) |
| OKLCH | oklch(43.4% 0.033 255.2) |
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 #455263 | 7.95:1 | AAA | Lc -92.3 | Preferred for body text |
| Black text on #455263 | 2.64:1 | Fails | Lc 16.4 | Dividers and decoration only |
| #455263 text on white | 7.95:1 | AAA | Lc 87.6 | Fine for body text |
| #455263 text on black | 2.64:1 | Fails | Lc -14.6 | 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
#F4F5F7
oklch(97% 0.003 264.5)
-
Step 100
100
#E7EAED
oklch(93.6% 0.005 247.9)
-
Step 200
200
#D5DAE0
oklch(88.6% 0.01 252.8)
-
Step 300
300
#B9C1CD
oklch(80.8% 0.019 258.4)
-
Step 400
400
#94A2B4
oklch(70.7% 0.031 254.7)
-
Step 500
500
#7A8BA1
oklch(63.1% 0.039 255)
-
Step 600
600
#63758C
oklch(55.6% 0.042 254.7)
-
Step 700
700
#526277
oklch(49.1% 0.039 255.3)
-
Step 800
800 (this color)
#455263
oklch(43.4% 0.033 255.2)
-
Step 900
900
#39424F
oklch(37.6% 0.025 257.5)
-
Step 950
950
#21272E
oklch(27% 0.016 252.4)
#455263 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) | #4C5364 | 0.011 |
| Deuteranopia (no green cones) | #495063 | 0.008 |
| Tritanopia (no blue cones) | #3D5658 | 0.028 |
| Achromatopsia (no color) | #515151 | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #455263
#455263
oklch(43.4% 0.033 255.2)
- #5C4F3D
#5C4F3D
oklch(43.5% 0.033 75.7)
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 #455263, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.035
- Dusty Grape #545775 ΔE 0.040
- Dark Slate Gray #2F4F4F ΔE 0.047
- Dusk #4E5481 ΔE 0.052
- Dark Grey Blue #29465B ΔE 0.057
- Petrol #005F6A ΔE 0.060
- Deep Teal #00555A ΔE 0.062
- Slate #516572 ΔE 0.062
Use #455263 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.