#051822
Closest named color: Rich Black (#0D1B2A). oklch(19.8% 0.032 233.5), rgb(5, 24, 34).
Aa
White text reads best on this color (18.10:1).
About this color
#051822 is a very dark, muted blue. In OKLCH its lightness is 20%, its chroma 0.032 and its hue 234°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.022 away. White text reads best on it, at 18.10:1.
| Hue family | Blues |
| Lightness | very dark (20%) |
| Chroma | muted (0.032) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.16:1 |
| White text | 18.10:1 |
Values
| HEX | #051822 |
| RGB | rgb(5, 24, 34) |
| HSL | hsl(201, 74%, 8%) |
| OKLCH | oklch(19.8% 0.032 233.5) |
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 #051822 | 18.10:1 | AAA | Lc -106.9 | Preferred for body text |
| Black text on #051822 | 1.16:1 | Fails | Lc 0.0 | Not readable |
| #051822 text on white | 18.10:1 | AAA | Lc 104.7 | Preferred for body text |
| #051822 text on black | 1.16:1 | 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
#CCDCE5
oklch(88.5% 0.021 232.2)
-
Step 300
300
#A9C5D6
oklch(80.8% 0.039 234.6)
-
Step 400
400
#7AA8C1
oklch(70.8% 0.061 232.5)
-
Step 500
500
#5692B2
oklch(63.2% 0.079 233.2)
-
Step 600
600
#397B9D
oklch(55.5% 0.085 233.7)
-
Step 700
700
#2B6887
oklch(49.1% 0.08 233.9)
-
Step 800
800
#25556D
oklch(42.7% 0.065 232.9)
-
Step 900
900
#234659
oklch(37.7% 0.052 234.2)
-
Step 950
950 (this color)
#051822
oklch(19.8% 0.032 233.5)
#051822 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) | #131822 | 0.021 |
| Deuteranopia (no green cones) | #0F1522 | 0.017 |
| Tritanopia (no blue cones) | #001B1B | 0.022 |
| Achromatopsia (no color) | #161616 | 0.032 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #051822
#051822
oklch(19.8% 0.032 233.5)
- #211107
#211107
oklch(19.7% 0.033 52.6)
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 #051822, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.022
- Rich Navy #001219 ΔE 0.030
- Almost Black #070D0D ΔE 0.053
- Dark #1B2431 ΔE 0.061
- Jet #212529 ΔE 0.068
- Oxford Blue #1B263B ΔE 0.074
- Navy Blue #001146 ΔE 0.076
- Dark Navy #000435 ΔE 0.080
Use #051822 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.