#182C35
Closest named color: Oxford Blue (#1B263B). oklch(28% 0.031 228.4), rgb(24, 44, 53).
Aa
White text reads best on this color (14.47:1).
About this color
#182C35 is a dark, muted teal or cyan. In OKLCH its lightness is 28%, its chroma 0.031 and its hue 228°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.027 away. White text reads best on it, at 14.47:1.
| Hue family | Teals and cyans |
| Lightness | dark (28%) |
| Chroma | muted (0.031) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.45:1 |
| White text | 14.47:1 |
Values
| HEX | #182C35 |
| RGB | rgb(24, 44, 53) |
| HSL | hsl(199, 38%, 15%) |
| OKLCH | oklch(28% 0.031 228.4) |
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 #182C35 | 14.47:1 | AAA | Lc -104.1 | Preferred for body text |
| Black text on #182C35 | 1.45:1 | Fails | Lc 0.0 | Not readable |
| #182C35 text on white | 14.47:1 | AAA | Lc 101.2 | Preferred for body text |
| #182C35 text on black | 1.45:1 | 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
#CCDCE4
oklch(88.5% 0.02 229.1)
-
Step 300
300
#A9C6D3
oklch(80.9% 0.036 226.7)
-
Step 400
400
#7AA8BE
oklch(70.7% 0.059 229.1)
-
Step 500
500
#5692AD
oklch(63% 0.074 228.7)
-
Step 600
600
#397C99
oklch(55.5% 0.081 229.1)
-
Step 700
700
#2B6982
oklch(49.2% 0.074 227.8)
-
Step 800
800
#25556A
oklch(42.6% 0.062 229.4)
-
Step 900
900
#234756
oklch(37.8% 0.049 227.3)
-
Step 950
950 (this color)
#182C35
oklch(28% 0.031 228.4)
#182C35 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) | #272B35 | 0.022 |
| Deuteranopia (no green cones) | #232835 | 0.020 |
| Tritanopia (no blue cones) | #0A2F2F | 0.023 |
| Achromatopsia (no color) | #292929 | 0.031 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #182C35
#182C35
oklch(28% 0.031 228.4)
- #36241C
#36241C
oklch(28% 0.031 44.9)
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 #182C35, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.027
- Dark #1B2431 ΔE 0.027
- Jet #212529 ΔE 0.029
- Gunmetal #293241 ΔE 0.039
- Space Cadet #2B2D42 ΔE 0.039
- Midnight Green #073B4C ΔE 0.056
- Dark Blue Grey #1F3B4D ΔE 0.061
- Rich Black #0D1B2A ΔE 0.064
Use #182C35 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.