#425663
Closest named color: YInMn Blue (#415A77). oklch(44.2% 0.033 237), rgb(66, 86, 99).
Aa
White text reads best on this color (7.65:1).
About this color
#425663 is a dark, muted blue. In OKLCH its lightness is 44%, its chroma 0.033 and its hue 237°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.032 away. White text reads best on it, at 7.65:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | muted (0.033) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.74:1 |
| White text | 7.65:1 |
Values
| HEX | #425663 |
| RGB | rgb(66, 86, 99) |
| HSL | hsl(204, 20%, 32%) |
| OKLCH | oklch(44.2% 0.033 237) |
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 #425663 | 7.65:1 | AAA | Lc -91.4 | Preferred for body text |
| Black text on #425663 | 2.74:1 | Fails | Lc 17.4 | Dividers and decoration only |
| #425663 text on white | 7.65:1 | AAA | Lc 86.6 | Fine for body text |
| #425663 text on black | 2.74:1 | Fails | Lc -15.5 | 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
#E6EAED
oklch(93.5% 0.006 239.8)
-
Step 200
200
#D3DADF
oklch(88.4% 0.01 238.5)
-
Step 300
300
#B6C3CC
oklch(81% 0.019 237.8)
-
Step 400
400
#8FA4B2
oklch(70.7% 0.031 237.1)
-
Step 500
500
#748E9E
oklch(63.2% 0.038 235.2)
-
Step 600
600
#5C7789
oklch(55.5% 0.042 237.7)
-
Step 700
700
#4B6475
oklch(49% 0.04 238.4)
-
Step 800
800 (this color)
#425663
oklch(44.2% 0.033 237)
-
Step 900
900
#35444E
oklch(37.8% 0.026 237.6)
-
Step 950
950
#1F282D
oklch(27% 0.016 232.4)
#425663 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) | #505564 | 0.020 |
| Deuteranopia (no green cones) | #4C5263 | 0.018 |
| Tritanopia (no blue cones) | #38595A | 0.024 |
| Achromatopsia (no color) | #535353 | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #425663
#425663
oklch(44.2% 0.033 237)
- #614F42
#614F42
oklch(44.2% 0.032 57.6)
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 #425663, 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 0.041
- Dark Slate Gray #2F4F4F ΔE 0.046
- Petrol #005F6A ΔE 0.050
- Slate #516572 ΔE 0.054
- Dusk #4E5481 ΔE 0.056
- Deep Teal #00555A ΔE 0.057
- Dark Green Blue #1F6357 ΔE 0.061
Use #425663 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.