#01111B
Closest named color: Rich Navy (#001219). oklch(16.8% 0.033 234.5), rgb(1, 17, 27).
Aa
White text reads best on this color (19.13:1).
About this color
#01111B is a very dark, muted blue. In OKLCH its lightness is 17%, its chroma 0.033 and its hue 235°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.007 away. White text reads best on it, at 19.13:1.
| Hue family | Blues |
| Lightness | very dark (17%) |
| Chroma | muted (0.033) |
| Temperature | cool |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.09:1 |
| White text | 19.13:1 |
Values
| HEX | #01111B |
| RGB | rgb(1, 17, 27) |
| HSL | hsl(203, 93%, 5%) |
| OKLCH | oklch(16.8% 0.033 234.5) |
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 #01111B | 19.13:1 | AAA | Lc -107.4 | Preferred for body text |
| Black text on #01111B | 1.09:1 | Fails | Lc 0.0 | Not readable |
| #01111B text on white | 19.13:1 | AAA | Lc 105.4 | Preferred for body text |
| #01111B text on black | 1.09:1 | 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
#CCDCE6
oklch(88.5% 0.022 235)
-
Step 300
300
#A9C5D6
oklch(80.8% 0.039 234.6)
-
Step 400
400
#7AA7C2
oklch(70.6% 0.062 235.2)
-
Step 500
500
#5691B3
oklch(63% 0.08 235.3)
-
Step 600
600
#397B9E
oklch(55.5% 0.086 234.5)
-
Step 700
700
#2B6888
oklch(49.2% 0.081 234.7)
-
Step 800
800
#25556E
oklch(42.8% 0.066 234)
-
Step 900
900
#234659
oklch(37.7% 0.052 234.2)
-
Step 950
950 (this color)
#01111B
oklch(16.8% 0.033 234.5)
#01111B 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) | #0C111B | 0.020 |
| Deuteranopia (no green cones) | #080E1B | 0.017 |
| Tritanopia (no blue cones) | #001414 | 0.022 |
| Achromatopsia (no color) | #0F0F0F | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #01111B
#01111B
oklch(16.8% 0.033 234.5)
- #1A0B03
#1A0B03
oklch(17% 0.032 53.6)
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 #01111B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.007
- Almost Black #070D0D ΔE 0.030
- Rich Black #0D1B2A ΔE 0.051
- Dark Navy Blue #00022E ΔE 0.068
- Midnight #03012D ΔE 0.069
- Dark Navy #000435 ΔE 0.069
- Very Dark Blue #000133 ΔE 0.074
- Navy Blue #001146 ΔE 0.086
Use #01111B 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.