#00131E
Closest named color: Rich Navy (#001219). oklch(17.6% 0.036 233.4), rgb(0, 19, 30).
Aa
White text reads best on this color (18.88:1).
About this color
#00131E is a very dark, muted blue. In OKLCH its lightness is 18%, its chroma 0.036 and its hue 233°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.011 away. White text reads best on it, at 18.88:1.
| Hue family | Blues |
| Lightness | very dark (18%) |
| Chroma | muted (0.036) |
| Temperature | cool |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.11:1 |
| White text | 18.88:1 |
Values
| HEX | #00131E |
| RGB | rgb(0, 19, 30) |
| HSL | hsl(202, 100%, 6%) |
| OKLCH | oklch(17.6% 0.036 233.4) |
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 #00131E | 18.88:1 | AAA | Lc -107.3 | Preferred for body text |
| Black text on #00131E | 1.11:1 | Fails | Lc 0.0 | Not readable |
| #00131E text on white | 18.88:1 | AAA | Lc 105.2 | Preferred for body text |
| #00131E text on black | 1.11:1 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E2EBF1
oklch(93.5% 0.013 236.6)
-
Step 200
200
#CADCE7
oklch(88.4% 0.025 234.5)
-
Step 300
300
#A6C6D8
oklch(80.9% 0.043 232.7)
-
Step 400
400
#75A8C5
oklch(70.6% 0.069 234)
-
Step 500
500
#4E92B6
oklch(63% 0.088 233.6)
-
Step 600
600
#2D7CA2
oklch(55.5% 0.096 233.3)
-
Step 700
700
#1E698B
oklch(49.2% 0.089 232.8)
-
Step 800
800
#1C5571
oklch(42.6% 0.074 233.9)
-
Step 900
900
#1E475B
oklch(37.8% 0.057 232.2)
-
Step 950
950 (this color)
#00131E
oklch(17.6% 0.036 233.4)
#00131E 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) | #0D131F | 0.022 |
| Deuteranopia (no green cones) | #09101E | 0.018 |
| Tritanopia (no blue cones) | #001617 | 0.022 |
| Achromatopsia (no color) | #111111 | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00131E
#00131E
oklch(17.6% 0.036 233.4)
- #1D0C02
#1D0C02
oklch(17.7% 0.037 55.7)
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 #00131E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.011
- Almost Black #070D0D ΔE 0.037
- Rich Black #0D1B2A ΔE 0.043
- Dark Navy #000435 ΔE 0.069
- Dark Navy Blue #00022E ΔE 0.070
- Midnight #03012D ΔE 0.071
- Very Dark Blue #000133 ΔE 0.075
- Navy Blue #001146 ΔE 0.080
Use #00131E 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.