#051222
Closest named color: Rich Navy (#001219). oklch(18% 0.039 253.3), rgb(5, 18, 34).
Aa
White text reads best on this color (18.81:1).
About this color
#051222 is a very dark, muted blue. In OKLCH its lightness is 18%, its chroma 0.039 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.022 away. White text reads best on it, at 18.81:1.
| Hue family | Blues |
| Lightness | very dark (18%) |
| Chroma | muted (0.039) |
| Temperature | cool |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.11:1 |
| White text | 18.81:1 |
Values
| HEX | #051222 |
| RGB | rgb(5, 18, 34) |
| HSL | hsl(213, 74%, 8%) |
| OKLCH | oklch(18% 0.039 253.3) |
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 #051222 | 18.81:1 | AAA | Lc -107.3 | Preferred for body text |
| Black text on #051222 | 1.11:1 | Fails | Lc 0.0 | Not readable |
| #051222 text on white | 18.81:1 | AAA | Lc 105.2 | Preferred for body text |
| #051222 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
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E4EBF3
oklch(93.7% 0.013 251.6)
-
Step 200
200
#CEDBEA
oklch(88.6% 0.025 251.9)
-
Step 300
300
#ADC3DE
oklch(80.9% 0.045 253.6)
-
Step 400
400
#81A4CE
oklch(70.8% 0.073 253.3)
-
Step 500
500
#608CC1
oklch(63% 0.094 253.7)
-
Step 600
600
#4676AD
oklch(55.7% 0.101 253)
-
Step 700
700
#376395
oklch(49.2% 0.094 252.9)
-
Step 800
800
#2E5179
oklch(42.8% 0.078 252.9)
-
Step 900
900
#2A4361
oklch(37.7% 0.06 253.7)
-
Step 950
950 (this color)
#051222
oklch(18% 0.039 253.3)
#051222 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) | #0B1323 | 0.011 |
| Deuteranopia (no green cones) | #071022 | 0.008 |
| Tritanopia (no blue cones) | #001618 | 0.031 |
| Achromatopsia (no color) | #111111 | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #051222
#051222
oklch(18% 0.039 253.3)
- #1B0E00
#1B0E00
oklch(17.8% 0.038 73.1)
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 #051222, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.022
- Rich Black #0D1B2A ΔE 0.038
- Almost Black #070D0D ΔE 0.044
- Dark Navy #000435 ΔE 0.061
- Dark Navy Blue #00022E ΔE 0.064
- Midnight #03012D ΔE 0.065
- Very Dark Blue #000133 ΔE 0.069
- Navy Blue #001146 ΔE 0.071
Use #051222 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.