#000C1F
Closest named color: Rich Navy (#001219). oklch(15.4% 0.047 252.5), rgb(0, 12, 31).
Aa
White text reads best on this color (19.58:1).
About this color
#000C1F is a very dark, muted blue. In OKLCH its lightness is 15%, its chroma 0.047 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.029 away. White text reads best on it, at 19.58:1.
| Hue family | Blues |
| Lightness | very dark (15%) |
| Chroma | muted (0.047) |
| Temperature | cool |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.07:1 |
| White text | 19.58:1 |
Values
| HEX | #000C1F |
| RGB | rgb(0, 12, 31) |
| HSL | hsl(217, 100%, 6%) |
| OKLCH | oklch(15.4% 0.047 252.5) |
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 #000C1F | 19.58:1 | AAA | Lc -107.6 | Preferred for body text |
| Black text on #000C1F | 1.07:1 | Fails | Lc 0.0 | Not readable |
| #000C1F text on white | 19.58:1 | AAA | Lc 105.6 | Preferred for body text |
| #000C1F text on black | 1.07:1 | 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
#E2EBF5
oklch(93.6% 0.017 250.8)
-
Step 200
200
#CBDBEE
oklch(88.5% 0.031 252.7)
-
Step 300
300
#A8C4E4
oklch(81% 0.055 251.9)
-
Step 400
400
#78A4D7
oklch(70.7% 0.089 252.7)
-
Step 500
500
#548DCC
oklch(63.2% 0.113 252.2)
-
Step 600
600
#3776B9
oklch(55.7% 0.123 252.1)
-
Step 700
700
#29629F
oklch(48.9% 0.115 252.6)
-
Step 800
800
#245181
oklch(42.8% 0.094 252.2)
-
Step 900
900
#224368
oklch(37.7% 0.075 252.8)
-
Step 950
950 (this color)
#000C1F
oklch(15.4% 0.047 252.5)
#000C1F 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) | #040E20 | 0.013 |
| Deuteranopia (no green cones) | #000A1F | 0.007 |
| Tritanopia (no blue cones) | #001113 | 0.036 |
| Achromatopsia (no color) | #0C0C0C | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #000C1F
#000C1F
oklch(15.4% 0.047 252.5)
- #140900
#140900
oklch(15.3% 0.033 72.1)
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 #000C1F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.029
- Almost Black #070D0D ΔE 0.042
- Dark Navy Blue #00022E ΔE 0.046
- Midnight #03012D ΔE 0.047
- Dark Navy #000435 ΔE 0.051
- Very Dark Blue #000133 ΔE 0.054
- Rich Black #0D1B2A ΔE 0.065
- Navy Blue #001146 ΔE 0.080
Use #000C1F 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.