#1D232B
Closest named color: Dark (#1B2431). oklch(25.4% 0.018 255.7), rgb(29, 35, 43).
Aa
White text reads best on this color (15.81:1).
About this color
#1D232B is a dark close to neutral grey. In OKLCH its lightness is 25%, its chroma 0.018. It has too little chroma to lean warm or cool. The nearest named color is Dark (#1B2431), ΔE 0.011 away. White text reads best on it, at 15.81:1.
| Hue family | Neutrals |
| Lightness | dark (25%) |
| Chroma | close to neutral grey (0.018) |
| Temperature | neutral |
| Nearest name | Dark (#1B2431) |
| Black text | 1.32:1 |
| White text | 15.81:1 |
Values
| HEX | #1D232B |
| RGB | rgb(29, 35, 43) |
| HSL | hsl(214, 19%, 14%) |
| OKLCH | oklch(25.4% 0.018 255.7) |
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 #1D232B | 15.81:1 | AAA | Lc -105.4 | Preferred for body text |
| Black text on #1D232B | 1.32:1 | Fails | Lc 0.0 | Not readable |
| #1D232B text on white | 15.81:1 | AAA | Lc 102.8 | Preferred for body text |
| #1D232B 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
#F4F5F7
oklch(97% 0.003 264.5)
-
Step 100
100
#E7EAEE
oklch(93.6% 0.006 255.5)
-
Step 200
200
#D4DAE1
oklch(88.6% 0.012 252.1)
-
Step 300
300
#B8C1CE
oklch(80.8% 0.021 257.5)
-
Step 400
400
#93A2B6
oklch(70.7% 0.034 255.6)
-
Step 500
500
#798BA3
oklch(63.1% 0.042 255.7)
-
Step 600
600
#62758E
oklch(55.6% 0.045 255.4)
-
Step 700
700
#516279
oklch(49.1% 0.043 256.1)
-
Step 800
800
#425063
oklch(42.7% 0.036 256.1)
-
Step 900
900
#384250
oklch(37.6% 0.027 256.8)
-
Step 950
950 (this color)
#1D232B
oklch(25.4% 0.018 255.7)
#1D232B 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) | #20232B | 0.005 |
| Deuteranopia (no green cones) | #1F222B | 0.005 |
| Tritanopia (no blue cones) | #192526 | 0.015 |
| Achromatopsia (no color) | #222222 | 0.018 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1D232B
#1D232B
oklch(25.4% 0.018 255.7)
- #272119
#272119
oklch(25.2% 0.017 74.8)
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 #1D232B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark #1B2431 ΔE 0.011
- Jet #212529 ΔE 0.012
- Oxford Blue #1B263B ΔE 0.029
- Rich Black #0D1B2A ΔE 0.040
- Space Cadet #2B2D42 ΔE 0.056
- Gunmetal #293241 ΔE 0.063
- Dark Brown #341C02 ΔE 0.071
- Rich Navy #001219 ΔE 0.087
Use #1D232B 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.