#021722
Closest named color: Rich Navy (#001219). oklch(19.3% 0.036 233), rgb(2, 23, 34).
Aa
White text reads best on this color (18.28:1).
About this color
#021722 is a very dark, muted blue. In OKLCH its lightness is 19%, 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 0.025 away. White text reads best on it, at 18.28:1.
| Hue family | Blues |
| Lightness | very dark (19%) |
| Chroma | muted (0.036) |
| Temperature | cool |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.14:1 |
| White text | 18.28:1 |
Values
| HEX | #021722 |
| RGB | rgb(2, 23, 34) |
| HSL | hsl(201, 89%, 7%) |
| OKLCH | oklch(19.3% 0.036 233) |
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 #021722 | 18.28:1 | AAA | Lc -107.0 | Preferred for body text |
| Black text on #021722 | 1.14:1 | Fails | Lc 0.0 | Not readable |
| #021722 text on white | 18.28:1 | AAA | Lc 104.8 | Preferred for body text |
| #021722 text on black | 1.14:1 | 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
#1F698B
oklch(49.2% 0.089 233)
-
Step 800
800
#1C5570
oklch(42.6% 0.073 232.9)
-
Step 900
900
#1E475B
oklch(37.8% 0.057 232.2)
-
Step 950
950 (this color)
#021722
oklch(19.3% 0.036 233)
#021722 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) | #121723 | 0.024 |
| Deuteranopia (no green cones) | #0D1322 | 0.021 |
| Tritanopia (no blue cones) | #001A1B | 0.021 |
| Achromatopsia (no color) | #151515 | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #021722
#021722
oklch(19.3% 0.036 233)
- #210F05
#210F05
oklch(19.2% 0.036 50.6)
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 #021722, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.025
- Rich Black #0D1B2A ΔE 0.027
- Almost Black #070D0D ΔE 0.050
- Dark #1B2431 ΔE 0.067
- Jet #212529 ΔE 0.074
- Navy Blue #001146 ΔE 0.075
- Dark Navy #000435 ΔE 0.075
- Oxford Blue #1B263B ΔE 0.079
Use #021722 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.