#101E34
Closest named color: Rich Black (#0D1B2A). oklch(23.5% 0.047 259.1), rgb(16, 30, 52).
Aa
White text reads best on this color (16.70:1).
About this color
#101E34 is a very dark, muted blue. In OKLCH its lightness is 23%, its chroma 0.047 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.021 away. White text reads best on it, at 16.70:1.
| Hue family | Blues |
| Lightness | very dark (23%) |
| Chroma | muted (0.047) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.25:1 |
| White text | 16.70:1 |
Values
| HEX | #101E34 |
| RGB | rgb(16, 30, 52) |
| HSL | hsl(217, 53%, 13%) |
| OKLCH | oklch(23.5% 0.047 259.1) |
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 #101E34 | 16.70:1 | AAA | Lc -106.0 | Preferred for body text |
| Black text on #101E34 | 1.25:1 | Fails | Lc 0.0 | Not readable |
| #101E34 text on white | 16.70:1 | AAA | Lc 103.6 | Preferred for body text |
| #101E34 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
#E4EAF5
oklch(93.6% 0.016 262.8)
-
Step 200
200
#CDDAEE
oklch(88.5% 0.031 258.9)
-
Step 300
300
#ABC2E5
oklch(80.9% 0.056 258.7)
-
Step 400
400
#7FA2D8
oklch(70.7% 0.089 258.9)
-
Step 500
500
#5F8ACE
oklch(63.2% 0.114 259.3)
-
Step 600
600
#4573BB
oklch(55.7% 0.123 259)
-
Step 700
700
#3660A1
oklch(49.1% 0.115 258.9)
-
Step 800
800
#2D4E82
oklch(42.6% 0.095 259.1)
-
Step 900
900
#294269
oklch(37.9% 0.074 259)
-
Step 950
950 (this color)
#101E34
oklch(23.5% 0.047 259.1)
#101E34 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) | #152035 | 0.011 |
| Deuteranopia (no green cones) | #101C34 | 0.007 |
| Tritanopia (no blue cones) | #002326 | 0.041 |
| Achromatopsia (no color) | #1E1E1E | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #101E34
#101E34
oklch(23.5% 0.047 259.1)
- #2A1B01
#2A1B01
oklch(23.5% 0.047 78.9)
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 #101E34, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.021
- Dark #1B2431 ΔE 0.030
- Oxford Blue #1B263B ΔE 0.035
- Jet #212529 ΔE 0.046
- Navy Blue #001146 ΔE 0.061
- Rich Navy #001219 ΔE 0.072
- Space Cadet #2B2D42 ΔE 0.072
- Gunmetal #293241 ΔE 0.082
Use #101E34 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.