#050D21
Closest named color: Rich Navy (#001219). oklch(16.4% 0.044 263.9), rgb(5, 13, 33).
Aa
White text reads best on this color (19.33:1).
About this color
#050D21 is a very dark, muted blue. In OKLCH its lightness is 16%, its chroma 0.044 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.030 away. White text reads best on it, at 19.33:1.
| Hue family | Blues |
| Lightness | very dark (16%) |
| Chroma | muted (0.044) |
| Temperature | cool |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.08:1 |
| White text | 19.33:1 |
Values
| HEX | #050D21 |
| RGB | rgb(5, 13, 33) |
| HSL | hsl(223, 74%, 7%) |
| OKLCH | oklch(16.4% 0.044 263.9) |
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 #050D21 | 19.33:1 | AAA | Lc -107.5 | Preferred for body text |
| Black text on #050D21 | 1.08:1 | Fails | Lc 0.0 | Not readable |
| #050D21 text on white | 19.33:1 | AAA | Lc 105.5 | Preferred for body text |
| #050D21 text on black | 1.08:1 | 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
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E5EAF4
oklch(93.6% 0.015 264.5)
-
Step 200
200
#CFD9ED
oklch(88.4% 0.03 264.4)
-
Step 300
300
#B0C1E3
oklch(80.9% 0.052 264.2)
-
Step 400
400
#86A0D6
oklch(70.6% 0.085 264.4)
-
Step 500
500
#6888CA
oklch(63.1% 0.107 263.9)
-
Step 600
600
#5071B7
oklch(55.6% 0.116 263.9)
-
Step 700
700
#405E9E
oklch(49% 0.109 263.9)
-
Step 800
800
#354D80
oklch(42.6% 0.09 263.9)
-
Step 900
900
#2E4167
oklch(37.8% 0.07 263.2)
-
Step 950
950 (this color)
#050D21
oklch(16.4% 0.044 263.9)
#050D21 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) | #040F22 | 0.007 |
| Deuteranopia (no green cones) | #020D21 | 0.007 |
| Tritanopia (no blue cones) | #001215 | 0.037 |
| Achromatopsia (no color) | #0E0E0E | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #050D21
#050D21
oklch(16.4% 0.044 263.9)
- #150D00
#150D00
oklch(16.5% 0.034 85.3)
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 #050D21, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.030
- Almost Black #070D0D ΔE 0.043
- Midnight #03012D ΔE 0.049
- Dark Navy Blue #00022E ΔE 0.050
- Dark Navy #000435 ΔE 0.051
- Rich Black #0D1B2A ΔE 0.055
- Very Dark Blue #000133 ΔE 0.057
- Navy Blue #001146 ΔE 0.074
Use #050D21 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.