#121925
Closest named color: Rich Black (#0D1B2A). oklch(21.3% 0.026 261), rgb(18, 25, 37).
Aa
White text reads best on this color (17.62:1).
About this color
#121925 is a very dark close to neutral grey. In OKLCH its lightness is 21%, its chroma 0.026. It has too little chroma to lean warm or cool. The nearest named color is Rich Black (#0D1B2A), ΔE 0.012 away. White text reads best on it, at 17.62:1.
| Hue family | Neutrals |
| Lightness | very dark (21%) |
| Chroma | close to neutral grey (0.026) |
| Temperature | neutral |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.19:1 |
| White text | 17.62:1 |
Values
| HEX | #121925 |
| RGB | rgb(18, 25, 37) |
| HSL | hsl(218, 35%, 11%) |
| OKLCH | oklch(21.3% 0.026 261) |
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 #121925 | 17.62:1 | AAA | Lc -106.7 | Preferred for body text |
| Black text on #121925 | 1.19:1 | Fails | Lc 0.0 | Not readable |
| #121925 text on white | 17.62:1 | AAA | Lc 104.4 | Preferred for body text |
| #121925 text on black | 1.19:1 | 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
#F4F5F8
oklch(97% 0.004 271.4)
-
Step 100
100
#E6EAF0
oklch(93.6% 0.009 258.3)
-
Step 200
200
#D3D9E5
oklch(88.4% 0.018 264.5)
-
Step 300
300
#B6C1D5
oklch(80.9% 0.031 262.5)
-
Step 400
400
#8FA1C0
oklch(70.6% 0.05 261.3)
-
Step 500
500
#748AB0
oklch(63% 0.063 261.2)
-
Step 600
600
#5C749C
oklch(55.6% 0.069 260.4)
-
Step 700
700
#4C6185
oklch(49.1% 0.064 260.9)
-
Step 800
800
#3E4F6C
oklch(42.6% 0.053 260.9)
-
Step 900
900
#354258
oklch(37.7% 0.042 260.8)
-
Step 950
950 (this color)
#121925
oklch(21.3% 0.026 261)
#121925 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) | #151A26 | 0.007 |
| Deuteranopia (no green cones) | #131825 | 0.004 |
| Tritanopia (no blue cones) | #0C1C1D | 0.024 |
| Achromatopsia (no color) | #191919 | 0.026 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #121925
#121925
oklch(21.3% 0.026 261)
- #1F180A
#1F180A
oklch(21.3% 0.027 83.6)
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 #121925, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.012
- Dark #1B2431 ΔE 0.045
- Rich Navy #001219 ΔE 0.048
- Jet #212529 ΔE 0.052
- Oxford Blue #1B263B ΔE 0.059
- Almost Black #070D0D ΔE 0.065
- Navy Blue #001146 ΔE 0.076
- Dark Navy #000435 ΔE 0.087
Use #121925 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.