#405263
Closest named color: YInMn Blue (#415A77). oklch(43% 0.036 247.2), rgb(64, 82, 99).
Aa
White text reads best on this color (8.06:1).
About this color
#405263 is a dark, muted blue. In OKLCH its lightness is 43%, its chroma 0.036 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.036 away. White text reads best on it, at 8.06:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | muted (0.036) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.60:1 |
| White text | 8.06:1 |
Values
| HEX | #405263 |
| RGB | rgb(64, 82, 99) |
| HSL | hsl(209, 21%, 32%) |
| OKLCH | oklch(43% 0.036 247.2) |
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 #405263 | 8.06:1 | AAA | Lc -92.6 | Preferred for body text |
| Black text on #405263 | 2.60:1 | Fails | Lc 16.1 | Dividers and decoration only |
| #405263 text on white | 8.06:1 | AAA | Lc 87.9 | Fine for body text |
| #405263 text on black | 2.60:1 | Fails | Lc -14.2 | 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
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E7EAEE
oklch(93.6% 0.006 255.5)
-
Step 200
200
#D3DAE1
oklch(88.5% 0.012 248)
-
Step 300
300
#B6C2CE
oklch(80.8% 0.022 248.1)
-
Step 400
400
#90A3B5
oklch(70.7% 0.034 246.9)
-
Step 500
500
#758CA3
oklch(63% 0.044 248.5)
-
Step 600
600
#5D768E
oklch(55.5% 0.048 247.6)
-
Step 700
700
#4D6379
oklch(49.1% 0.044 248.7)
-
Step 800
800 (this color)
#405263
oklch(43% 0.036 247.2)
-
Step 900
900
#364350
oklch(37.7% 0.028 248.6)
-
Step 950
950
#20272F
oklch(26.9% 0.018 251.9)
#405263 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) | #4B5264 | 0.016 |
| Deuteranopia (no green cones) | #474E63 | 0.015 |
| Tritanopia (no blue cones) | #355658 | 0.030 |
| Achromatopsia (no color) | #505050 | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #405263
#405263
oklch(43% 0.036 247.2)
- #5E4C3B
#5E4C3B
oklch(43% 0.036 65)
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 #405263, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.036
- Dark Slate Gray #2F4F4F ΔE 0.042
- Dusty Grape #545775 ΔE 0.045
- Dark Grey Blue #29465B ΔE 0.052
- Dusk #4E5481 ΔE 0.055
- Petrol #005F6A ΔE 0.055
- Deep Teal #00555A ΔE 0.055
- Charcoal #264653 ΔE 0.057
Use #405263 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.