#042432
Closest named color: Dark (#1B2431). oklch(24.5% 0.045 231.3), rgb(4, 36, 50).
Aa
White text reads best on this color (16.10:1).
About this color
#042432 is a very dark, muted blue. In OKLCH its lightness is 25%, its chroma 0.045 and its hue 231°. Its hue sits on the cool side of the wheel. The nearest named color is Dark (#1B2431), ΔE 0.027 away. White text reads best on it, at 16.10:1.
| Hue family | Blues |
| Lightness | very dark (25%) |
| Chroma | muted (0.045) |
| Temperature | cool |
| Nearest name | Dark (#1B2431) |
| Black text | 1.30:1 |
| White text | 16.10:1 |
Values
| HEX | #042432 |
| RGB | rgb(4, 36, 50) |
| HSL | hsl(198, 85%, 11%) |
| OKLCH | oklch(24.5% 0.045 231.3) |
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 #042432 | 16.10:1 | AAA | Lc -105.5 | Preferred for body text |
| Black text on #042432 | 1.30:1 | Fails | Lc 0.0 | Not readable |
| #042432 text on white | 16.10:1 | AAA | Lc 102.9 | Preferred for body text |
| #042432 text on black | 1.30:1 | Fails | Lc 0.0 | 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 950.
-
Step 50
50
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E0ECF2
oklch(93.6% 0.015 229)
-
Step 200
200
#C6DDE9
oklch(88.4% 0.03 230.3)
-
Step 300
300
#9EC8DD
oklch(81% 0.053 229.8)
-
Step 400
400
#66AACC
oklch(70.6% 0.085 231.4)
-
Step 500
500
#3395BF
oklch(63.2% 0.109 230.7)
-
Step 600
600
#007EA9
oklch(55.6% 0.112 231.2)
-
Step 700
700
#006A8F
oklch(49.2% 0.1 231.3)
-
Step 800
800
#005776
oklch(42.8% 0.087 231.2)
-
Step 900
900
#0B4860
oklch(37.8% 0.07 230.6)
-
Step 950
950 (this color)
#042432
oklch(24.5% 0.045 231.3)
#042432 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) | #1D2333 | 0.030 |
| Deuteranopia (no green cones) | #171F32 | 0.026 |
| Tritanopia (no blue cones) | #002829 | 0.026 |
| Achromatopsia (no color) | #212121 | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #042432
#042432
oklch(24.5% 0.045 231.3)
- #311A0B
#311A0B
oklch(24.6% 0.044 52.3)
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 #042432, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark #1B2431 ΔE 0.027
- Rich Black #0D1B2A ΔE 0.032
- Oxford Blue #1B263B ΔE 0.034
- Jet #212529 ΔE 0.040
- Space Cadet #2B2D42 ΔE 0.069
- Gunmetal #293241 ΔE 0.074
- Navy Blue #001146 ΔE 0.076
- Rich Navy #001219 ΔE 0.078
Use #042432 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.