#101D36
Closest named color: Rich Black (#0D1B2A). oklch(23.4% 0.052 262.3), rgb(16, 29, 54).
Aa
White text reads best on this color (16.78:1).
About this color
#101D36 is a very dark, muted blue. In OKLCH its lightness is 23%, its chroma 0.052 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.024 away. White text reads best on it, at 16.78:1.
| Hue family | Blues |
| Lightness | very dark (23%) |
| Chroma | muted (0.052) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.25:1 |
| White text | 16.78:1 |
Values
| HEX | #101D36 |
| RGB | rgb(16, 29, 54) |
| HSL | hsl(219, 54%, 14%) |
| OKLCH | oklch(23.4% 0.052 262.3) |
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 #101D36 | 16.78:1 | AAA | Lc -106.0 | Preferred for body text |
| Black text on #101D36 | 1.25:1 | Fails | Lc 0.0 | Not readable |
| #101D36 text on white | 16.78:1 | AAA | Lc 103.6 | Preferred for body text |
| #101D36 text on black | 1.25:1 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E3EAF6
oklch(93.5% 0.018 261.3)
-
Step 200
200
#CDDAF0
oklch(88.5% 0.033 261)
-
Step 300
300
#ABC1E9
oklch(80.8% 0.062 262.3)
-
Step 400
400
#7FA1DE
oklch(70.8% 0.098 261.7)
-
Step 500
500
#5F88D5
oklch(63.1% 0.125 262.1)
-
Step 600
600
#4670C2
oklch(55.5% 0.136 262.4)
-
Step 700
700
#385EA8
oklch(49.2% 0.126 262.3)
-
Step 800
800
#2E4D88
oklch(42.8% 0.105 262)
-
Step 900
900
#29406D
oklch(37.6% 0.083 262.6)
-
Step 950
950 (this color)
#101D36
oklch(23.4% 0.052 262.3)
#101D36 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) | #121F37 | 0.008 |
| Deuteranopia (no green cones) | #0D1C35 | 0.006 |
| Tritanopia (no blue cones) | #002326 | 0.046 |
| Achromatopsia (no color) | #1D1D1D | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #101D36
#101D36
oklch(23.4% 0.052 262.3)
- #291B00
#291B00
oklch(23.4% 0.048 81.8)
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 #101D36, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.024
- Dark #1B2431 ΔE 0.034
- Oxford Blue #1B263B ΔE 0.037
- Jet #212529 ΔE 0.051
- Navy Blue #001146 ΔE 0.056
- Rich Navy #001219 ΔE 0.073
- Space Cadet #2B2D42 ΔE 0.074
- Dark Indigo #1F0954 ΔE 0.077
Use #101D36 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.