#424B61
Closest named color: Dark Grey Blue (#29465B). oklch(41.4% 0.039 267.4), rgb(66, 75, 97).
Aa
White text reads best on this color (8.71:1).
About this color
#424B61 is a dark, muted blue. In OKLCH its lightness is 41%, its chroma 0.039 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.040 away. White text reads best on it, at 8.71:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | muted (0.039) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.41:1 |
| White text | 8.71:1 |
Values
| HEX | #424B61 |
| RGB | rgb(66, 75, 97) |
| HSL | hsl(223, 19%, 32%) |
| OKLCH | oklch(41.4% 0.039 267.4) |
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 #424B61 | 8.71:1 | AAA | Lc -94.3 | Preferred for body text |
| Black text on #424B61 | 2.41:1 | Fails | Lc 14.1 | Not readable |
| #424B61 text on white | 8.71:1 | AAA | Lc 89.9 | Fine for body text |
| #424B61 text on black | 2.41:1 | Fails | Lc -12.4 | 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
#E8EAEE
oklch(93.7% 0.006 264.5)
-
Step 200
200
#D5D9E2
oklch(88.5% 0.013 266.7)
-
Step 300
300
#BAC1D0
oklch(81% 0.022 265.7)
-
Step 400
400
#96A0B8
oklch(70.6% 0.037 267.5)
-
Step 500
500
#7D89A6
oklch(63.1% 0.046 267.4)
-
Step 600
600
#667392
oklch(55.7% 0.051 267)
-
Step 700
700
#55607C
oklch(49.1% 0.047 268)
-
Step 800
800 (this color)
#424B61
oklch(41.4% 0.039 267.4)
-
Step 900
900
#3A4152
oklch(37.6% 0.031 267.4)
-
Step 950
950
#222630
oklch(26.9% 0.02 267.9)
#424B61 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) | #444D62 | 0.007 |
| Deuteranopia (no green cones) | #414A60 | 0.004 |
| Tritanopia (no blue cones) | #3A4F52 | 0.035 |
| Achromatopsia (no color) | #4B4B4B | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #424B61
#424B61
oklch(41.4% 0.039 267.4)
- #544A33
#544A33
oklch(41.3% 0.038 87.1)
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 #424B61, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.040
- Dark Slate Gray #2F4F4F ΔE 0.046
- Charcoal #264653 ΔE 0.049
- YInMn Blue #415A77 ΔE 0.051
- Dusty Grape #545775 ΔE 0.054
- Charcoal Grey #3C4142 ΔE 0.056
- Dusk #4E5481 ΔE 0.059
- Deep Teal #00555A ΔE 0.064
Use #424B61 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.