#121624
Closest named color: Rich Black (#0D1B2A). oklch(20.3% 0.029 271.4), rgb(18, 22, 36).
Aa
White text reads best on this color (18.01:1).
About this color
#121624 is a very dark close to neutral grey. In OKLCH its lightness is 20%, its chroma 0.029. It has too little chroma to lean warm or cool. The nearest named color is Rich Black (#0D1B2A), ΔE 0.019 away. White text reads best on it, at 18.01:1.
| Hue family | Neutrals |
| Lightness | very dark (20%) |
| Chroma | close to neutral grey (0.029) |
| Temperature | neutral |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.16:1 |
| White text | 18.01:1 |
Values
| HEX | #121624 |
| RGB | rgb(18, 22, 36) |
| HSL | hsl(227, 33%, 11%) |
| OKLCH | oklch(20.3% 0.029 271.4) |
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 #121624 | 18.01:1 | AAA | Lc -106.9 | Preferred for body text |
| Black text on #121624 | 1.16:1 | Fails | Lc 0.0 | Not readable |
| #121624 text on white | 18.01:1 | AAA | Lc 104.7 | Preferred for body text |
| #121624 text on black | 1.16:1 | 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E7EAF1
oklch(93.7% 0.01 267.4)
-
Step 200
200
#D4D9E6
oklch(88.5% 0.019 269.1)
-
Step 300
300
#B8C0D7
oklch(80.9% 0.034 270.4)
-
Step 400
400
#949FC3
oklch(70.6% 0.054 271.7)
-
Step 500
500
#7A87B4
oklch(63% 0.07 271.8)
-
Step 600
600
#6371A0
oklch(55.6% 0.075 271.1)
-
Step 700
700
#525E89
oklch(49% 0.071 271.7)
-
Step 800
800
#434D6F
oklch(42.6% 0.058 271.2)
-
Step 900
900
#39405A
oklch(37.7% 0.046 272.4)
-
Step 950
950 (this color)
#121624
oklch(20.3% 0.029 271.4)
#121624 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) | #111725 | 0.004 |
| Deuteranopia (no green cones) | #101624 | 0.003 |
| Tritanopia (no blue cones) | #0C191B | 0.026 |
| Achromatopsia (no color) | #171717 | 0.029 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #121624
#121624
oklch(20.3% 0.029 271.4)
- #1C1607
#1C1607
oklch(20.3% 0.028 88.4)
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 #121624, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.019
- Rich Navy #001219 ΔE 0.042
- Dark #1B2431 ΔE 0.055
- Almost Black #070D0D ΔE 0.058
- Jet #212529 ΔE 0.062
- Oxford Blue #1B263B ΔE 0.067
- Navy Blue #001146 ΔE 0.074
- Dark Navy #000435 ΔE 0.080
Use #121624 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.