#10232D
Closest named color: Dark (#1B2431). oklch(24.5% 0.031 233), rgb(16, 35, 45).
Aa
White text reads best on this color (16.14:1).
About this color
#10232D is a very dark, muted blue. In OKLCH its lightness is 24%, its chroma 0.031 and its hue 233°. Its hue sits on the cool side of the wheel. The nearest named color is Dark (#1B2431), ΔE 0.018 away. White text reads best on it, at 16.14:1.
| Hue family | Blues |
| Lightness | very dark (24%) |
| Chroma | muted (0.031) |
| Temperature | cool |
| Nearest name | Dark (#1B2431) |
| Black text | 1.30:1 |
| White text | 16.14:1 |
Values
| HEX | #10232D |
| RGB | rgb(16, 35, 45) |
| HSL | hsl(201, 48%, 12%) |
| OKLCH | oklch(24.5% 0.031 233) |
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 #10232D | 16.14:1 | AAA | Lc -105.6 | Preferred for body text |
| Black text on #10232D | 1.30:1 | Fails | Lc 0.0 | Not readable |
| #10232D text on white | 16.14:1 | AAA | Lc 103.0 | Preferred for body text |
| #10232D 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E3EBF0
oklch(93.5% 0.011 234.8)
-
Step 200
200
#CCDCE5
oklch(88.5% 0.021 232.2)
-
Step 300
300
#AAC5D5
oklch(80.8% 0.037 233.9)
-
Step 400
400
#7BA8C0
oklch(70.8% 0.06 232)
-
Step 500
500
#5892B0
oklch(63.2% 0.076 232.3)
-
Step 600
600
#3B7B9C
oklch(55.5% 0.083 233.5)
-
Step 700
700
#2D6885
oklch(49.1% 0.077 232.7)
-
Step 800
800
#27556C
oklch(42.8% 0.063 232.6)
-
Step 900
900
#244658
oklch(37.7% 0.05 233.4)
-
Step 950
950 (this color)
#10232D
oklch(24.5% 0.031 233)
#10232D 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) | #1E232D | 0.020 |
| Deuteranopia (no green cones) | #1A1F2D | 0.019 |
| Tritanopia (no blue cones) | #022626 | 0.025 |
| Achromatopsia (no color) | #212121 | 0.031 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #10232D
#10232D
oklch(24.5% 0.031 233)
- #2C1C12
#2C1C12
oklch(24.4% 0.031 52.8)
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 #10232D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark #1B2431 ΔE 0.018
- Jet #212529 ΔE 0.028
- Rich Black #0D1B2A ΔE 0.030
- Oxford Blue #1B263B ΔE 0.032
- Space Cadet #2B2D42 ΔE 0.066
- Gunmetal #293241 ΔE 0.072
- Rich Navy #001219 ΔE 0.076
- Navy Blue #001146 ΔE 0.084
Use #10232D 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.