#12252A
Closest named color: Dark (#1B2431). oklch(25.1% 0.027 216.5), rgb(18, 37, 42).
Aa
White text reads best on this color (15.86:1).
About this color
#12252A is a dark close to neutral grey. In OKLCH its lightness is 25%, its chroma 0.027. It has too little chroma to lean warm or cool. The nearest named color is Dark (#1B2431), ΔE 0.020 away. White text reads best on it, at 15.86:1.
| Hue family | Neutrals |
| Lightness | dark (25%) |
| Chroma | close to neutral grey (0.027) |
| Temperature | neutral |
| Nearest name | Dark (#1B2431) |
| Black text | 1.32:1 |
| White text | 15.86:1 |
Values
| HEX | #12252A |
| RGB | rgb(18, 37, 42) |
| HSL | hsl(193, 40%, 12%) |
| OKLCH | oklch(25.1% 0.027 216.5) |
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 #12252A | 15.86:1 | AAA | Lc -105.4 | Preferred for body text |
| Black text on #12252A | 1.32:1 | Fails | Lc 0.0 | Not readable |
| #12252A text on white | 15.86:1 | AAA | Lc 102.8 | Preferred for body text |
| #12252A text on black | 1.32:1 | 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
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E3EBEE
oklch(93.5% 0.009 222.1)
-
Step 200
200
#CDDCE1
oklch(88.5% 0.018 219.7)
-
Step 300
300
#ABC6CE
oklch(80.9% 0.031 217.5)
-
Step 400
400
#7DA9B5
oklch(70.7% 0.05 216.4)
-
Step 500
500
#5A93A3
oklch(63% 0.064 217.7)
-
Step 600
600
#3E7E8E
oklch(55.7% 0.07 216.3)
-
Step 700
700
#2F6A79
oklch(49.2% 0.065 216.9)
-
Step 800
800
#285662
oklch(42.6% 0.054 217.1)
-
Step 900
900
#264750
oklch(37.7% 0.042 217.4)
-
Step 950
950 (this color)
#12252A
oklch(25.1% 0.027 216.5)
#12252A 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) | #22242A | 0.024 |
| Deuteranopia (no green cones) | #1E212A | 0.022 |
| Tritanopia (no blue cones) | #072727 | 0.015 |
| Achromatopsia (no color) | #222222 | 0.027 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #12252A
#12252A
oklch(25.1% 0.027 216.5)
- #2D1D19
#2D1D19
oklch(25% 0.027 34.6)
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 #12252A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark #1B2431 ΔE 0.020
- Jet #212529 ΔE 0.022
- Oxford Blue #1B263B ΔE 0.036
- Rich Black #0D1B2A ΔE 0.039
- Space Cadet #2B2D42 ΔE 0.065
- Gunmetal #293241 ΔE 0.068
- Dark Brown #341C02 ΔE 0.079
- Dark Forest Green #002D04 ΔE 0.080
Use #12252A 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.