#00071B
Closest named color: Dark Navy Blue (#00022E). oklch(13.4% 0.048 257.5), rgb(0, 7, 27).
Aa
White text reads best on this color (20.07:1).
About this color
#00071B is a very dark, muted blue. In OKLCH its lightness is 13%, its chroma 0.048 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Navy Blue (#00022E), ΔE 0.043 away. White text reads best on it, at 20.07:1.
| Hue family | Blues |
| Lightness | very dark (13%) |
| Chroma | muted (0.048) |
| Temperature | cool |
| Nearest name | Dark Navy Blue (#00022E) |
| Black text | 1.04:1 |
| White text | 20.07:1 |
Values
| HEX | #00071B |
| RGB | rgb(0, 7, 27) |
| HSL | hsl(224, 100%, 5%) |
| OKLCH | oklch(13.4% 0.048 257.5) |
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 #00071B | 20.07:1 | AAA | Lc -107.7 | Preferred for body text |
| Black text on #00071B | 1.04:1 | Fails | Lc 0.0 | Not readable |
| #00071B text on white | 20.07:1 | AAA | Lc 105.8 | Preferred for body text |
| #00071B text on black | 1.04:1 | 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
#E3EAF5
oklch(93.5% 0.017 259.4)
-
Step 200
200
#CCDAEF
oklch(88.4% 0.033 258.4)
-
Step 300
300
#AAC2E6
oklch(80.8% 0.057 258.4)
-
Step 400
400
#7CA2DA
oklch(70.6% 0.093 257.9)
-
Step 500
500
#5A8AD0
oklch(63% 0.118 257.8)
-
Step 600
600
#4073BD
oklch(55.6% 0.128 257.8)
-
Step 700
700
#3160A3
oklch(49% 0.119 257.6)
-
Step 800
800
#2A4F84
oklch(42.8% 0.098 257.6)
-
Step 900
900
#26426A
oklch(37.8% 0.077 257.4)
-
Step 950
950 (this color)
#00071B
oklch(13.4% 0.048 257.5)
#00071B 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) | #00091C | 0.009 |
| Deuteranopia (no green cones) | #00061B | 0.005 |
| Tritanopia (no blue cones) | #000C0F | 0.037 |
| Achromatopsia (no color) | #080808 | 0.048 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00071B
#00071B
oklch(13.4% 0.048 257.5)
- #0E0600
#0E0600
oklch(13.2% 0.028 74.5)
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 #00071B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Navy Blue #00022E ΔE 0.043
- Midnight #03012D ΔE 0.043
- Rich Navy #001219 ΔE 0.046
- Almost Black #070D0D ΔE 0.048
- Very Dark Blue #000133 ΔE 0.053
- Dark Navy #000435 ΔE 0.054
- Rich Black #0D1B2A ΔE 0.085
- Night Blue #040348 ΔE 0.092
Use #00071B 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.