#021223
Closest named color: Rich Navy (#001219). oklch(17.8% 0.043 249.1), rgb(2, 18, 35).
Aa
White text reads best on this color (18.86:1).
About this color
#021223 is a very dark, muted blue. In OKLCH its lightness is 18%, its chroma 0.043 and its hue 249°. 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 18.86:1.
| Hue family | Blues |
| Lightness | very dark (18%) |
| Chroma | muted (0.043) |
| Temperature | cool |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.11:1 |
| White text | 18.86:1 |
Values
| HEX | #021223 |
| RGB | rgb(2, 18, 35) |
| HSL | hsl(211, 89%, 7%) |
| OKLCH | oklch(17.8% 0.043 249.1) |
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 #021223 | 18.86:1 | AAA | Lc -107.3 | Preferred for body text |
| Black text on #021223 | 1.11:1 | Fails | Lc 0.0 | Not readable |
| #021223 text on white | 18.86:1 | AAA | Lc 105.2 | Preferred for body text |
| #021223 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EBF4
oklch(93.7% 0.015 251.2)
-
Step 200
200
#CBDBEB
oklch(88.4% 0.028 248.1)
-
Step 300
300
#A8C4E1
oklch(80.9% 0.051 249.4)
-
Step 400
400
#79A5D1
oklch(70.7% 0.08 249)
-
Step 500
500
#558EC6
oklch(63.1% 0.104 249.4)
-
Step 600
600
#3877B2
oklch(55.6% 0.113 249.2)
-
Step 700
700
#2A6499
oklch(49.1% 0.104 249)
-
Step 800
800
#24527C
oklch(42.7% 0.086 248.7)
-
Step 900
900
#234464
oklch(37.7% 0.068 249.4)
-
Step 950
950 (this color)
#021223
oklch(17.8% 0.043 249.1)
#021223 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) | #0A1324 | 0.015 |
| Deuteranopia (no green cones) | #051023 | 0.008 |
| Tritanopia (no blue cones) | #001618 | 0.032 |
| Achromatopsia (no color) | #111111 | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #021223
#021223
oklch(17.8% 0.043 249.1)
- #1C0D00
#1C0D00
oklch(17.7% 0.039 67.6)
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 #021223, 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 0.040
- Almost Black #070D0D ΔE 0.046
- Dark Navy #000435 ΔE 0.058
- Dark Navy Blue #00022E ΔE 0.061
- Midnight #03012D ΔE 0.062
- Very Dark Blue #000133 ΔE 0.065
- Navy Blue #001146 ΔE 0.069
Use #021223 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.