#12252D
Closest named color: Dark (#1B2431). oklch(25.2% 0.029 227), rgb(18, 37, 45).
Aa
White text reads best on this color (15.81:1).
About this color
#12252D is a dark close to neutral grey. In OKLCH its lightness is 25%, its chroma 0.029. It has too little chroma to lean warm or cool. The nearest named color is Dark (#1B2431), ΔE 0.016 away. White text reads best on it, at 15.81:1.
| Hue family | Neutrals |
| Lightness | dark (25%) |
| Chroma | close to neutral grey (0.029) |
| Temperature | neutral |
| Nearest name | Dark (#1B2431) |
| Black text | 1.32:1 |
| White text | 15.81:1 |
Values
| HEX | #12252D |
| RGB | rgb(18, 37, 45) |
| HSL | hsl(198, 43%, 12%) |
| OKLCH | oklch(25.2% 0.029 227) |
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 #12252D | 15.81:1 | AAA | Lc -105.3 | Preferred for body text |
| Black text on #12252D | 1.32:1 | Fails | Lc 0.0 | Not readable |
| #12252D text on white | 15.81:1 | AAA | Lc 102.7 | Preferred for body text |
| #12252D 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E3EBEF
oklch(93.5% 0.01 228.9)
-
Step 200
200
#CDDCE3
oklch(88.5% 0.019 227.3)
-
Step 300
300
#AAC6D2
oklch(81% 0.035 225.6)
-
Step 400
400
#7CA8BC
oklch(70.7% 0.056 227.7)
-
Step 500
500
#5992AB
oklch(63% 0.071 227.9)
-
Step 600
600
#3C7C96
oklch(55.5% 0.077 227.2)
-
Step 700
700
#2E6980
oklch(49.2% 0.071 226.6)
-
Step 800
800
#275568
oklch(42.6% 0.059 227.6)
-
Step 900
900
#254755
oklch(37.8% 0.046 226.7)
-
Step 950
950 (this color)
#12252D
oklch(25.2% 0.029 227)
#12252D 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) | #21242D | 0.022 |
| Deuteranopia (no green cones) | #1D212D | 0.020 |
| Tritanopia (no blue cones) | #052728 | 0.019 |
| Achromatopsia (no color) | #232323 | 0.029 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #12252D
#12252D
oklch(25.2% 0.029 227)
- #2E1E16
#2E1E16
oklch(25.3% 0.029 47.5)
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 #12252D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark #1B2431 ΔE 0.016
- Jet #212529 ΔE 0.023
- Oxford Blue #1B263B ΔE 0.030
- Rich Black #0D1B2A ΔE 0.038
- Space Cadet #2B2D42 ΔE 0.061
- Gunmetal #293241 ΔE 0.066
- Dark Brown #341C02 ΔE 0.082
- Midnight Green #073B4C ΔE 0.083
Use #12252D 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.