#101F32
Closest named color: Rich Black (#0D1B2A). oklch(23.6% 0.042 255), rgb(16, 31, 50).
Aa
White text reads best on this color (16.61:1).
About this color
#101F32 is a very dark, muted blue. In OKLCH its lightness is 24%, its chroma 0.042 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.020 away. White text reads best on it, at 16.61:1.
| Hue family | Blues |
| Lightness | very dark (24%) |
| Chroma | muted (0.042) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.26:1 |
| White text | 16.61:1 |
Values
| HEX | #101F32 |
| RGB | rgb(16, 31, 50) |
| HSL | hsl(214, 52%, 13%) |
| OKLCH | oklch(23.6% 0.042 255) |
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 #101F32 | 16.61:1 | AAA | Lc -105.9 | Preferred for body text |
| Black text on #101F32 | 1.26:1 | Fails | Lc 0.0 | Not readable |
| #101F32 text on white | 16.61:1 | AAA | Lc 103.5 | Preferred for body text |
| #101F32 text on black | 1.26:1 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E4EBF4
oklch(93.7% 0.014 254.6)
-
Step 200
200
#CDDAEC
oklch(88.4% 0.029 256.5)
-
Step 300
300
#ABC3E1
oklch(80.9% 0.05 254.1)
-
Step 400
400
#7FA3D2
oklch(70.7% 0.08 255.3)
-
Step 500
500
#5E8CC6
oklch(63.2% 0.101 254.8)
-
Step 600
600
#4375B3
oklch(55.6% 0.111 254.7)
-
Step 700
700
#35629A
oklch(49.1% 0.103 254.9)
-
Step 800
800
#2C507D
oklch(42.7% 0.086 254.9)
-
Step 900
900
#284364
oklch(37.8% 0.066 254.2)
-
Step 950
950 (this color)
#101F32
oklch(23.6% 0.042 255)
#101F32 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) | #172033 | 0.011 |
| Deuteranopia (no green cones) | #131D32 | 0.008 |
| Tritanopia (no blue cones) | #002326 | 0.036 |
| Achromatopsia (no color) | #1E1E1E | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #101F32
#101F32
oklch(23.6% 0.042 255)
- #2A1B05
#2A1B05
oklch(23.6% 0.042 74.3)
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 #101F32, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.020
- Dark #1B2431 ΔE 0.026
- Oxford Blue #1B263B ΔE 0.033
- Jet #212529 ΔE 0.042
- Navy Blue #001146 ΔE 0.066
- Space Cadet #2B2D42 ΔE 0.071
- Rich Navy #001219 ΔE 0.071
- Gunmetal #293241 ΔE 0.080
Use #101F32 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.