#021123
Closest named color: Rich Navy (#001219). oklch(17.5% 0.044 251.3), rgb(2, 17, 35).
Aa
White text reads best on this color (18.96:1).
About this color
#021123 is a very dark, muted blue. In OKLCH its lightness is 17%, its chroma 0.044 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.023 away. White text reads best on it, at 18.96:1.
| Hue family | Blues |
| Lightness | very dark (17%) |
| Chroma | muted (0.044) |
| Temperature | cool |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.10:1 |
| White text | 18.96:1 |
Values
| HEX | #021123 |
| RGB | rgb(2, 17, 35) |
| HSL | hsl(213, 89%, 7%) |
| OKLCH | oklch(17.5% 0.044 251.3) |
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 #021123 | 18.96:1 | AAA | Lc -107.3 | Preferred for body text |
| Black text on #021123 | 1.10:1 | Fails | Lc 0.0 | Not readable |
| #021123 text on white | 18.96:1 | AAA | Lc 105.3 | Preferred for body text |
| #021123 text on black | 1.10:1 | 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
#CCDBEC
oklch(88.5% 0.029 251.5)
-
Step 300
300
#A8C4E2
oklch(81% 0.052 250.3)
-
Step 400
400
#79A4D4
oklch(70.6% 0.085 251.8)
-
Step 500
500
#568DC8
oklch(63.1% 0.107 251.4)
-
Step 600
600
#3A76B5
oklch(55.6% 0.117 251.7)
-
Step 700
700
#2C639C
oklch(49.1% 0.109 251.7)
-
Step 800
800
#25517E
oklch(42.7% 0.09 251.2)
-
Step 900
900
#234365
oklch(37.5% 0.07 251.5)
-
Step 950
950 (this color)
#021123
oklch(17.5% 0.044 251.3)
#021123 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) | #081224 | 0.012 |
| Deuteranopia (no green cones) | #040F23 | 0.008 |
| Tritanopia (no blue cones) | #001518 | 0.031 |
| Achromatopsia (no color) | #101010 | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #021123
#021123
oklch(17.5% 0.044 251.3)
- #1B0D00
#1B0D00
oklch(17.5% 0.038 69.7)
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 #021123, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.023
- Rich Black #0D1B2A ΔE 0.044
- Almost Black #070D0D ΔE 0.045
- Dark Navy #000435 ΔE 0.055
- Dark Navy Blue #00022E ΔE 0.057
- Midnight #03012D ΔE 0.059
- Very Dark Blue #000133 ΔE 0.062
- Navy Blue #001146 ΔE 0.069
Use #021123 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.