#18312A
Closest named color: Pakistan Green (#283618). oklch(29% 0.034 173.8), rgb(24, 49, 42).
Aa
White text reads best on this color (13.89:1).
About this color
#18312A is a dark, muted teal or cyan. In OKLCH its lightness is 29%, its chroma 0.034 and its hue 174°. Its hue sits on the cool side of the wheel. The nearest named color is Pakistan Green (#283618), ΔE 0.043 away. White text reads best on it, at 13.89:1.
| Hue family | Teals and cyans |
| Lightness | dark (29%) |
| Chroma | muted (0.034) |
| Temperature | cool |
| Nearest name | Pakistan Green (#283618) |
| Black text | 1.51:1 |
| White text | 13.89:1 |
Values
| HEX | #18312A |
| RGB | rgb(24, 49, 42) |
| HSL | hsl(163, 34%, 14%) |
| OKLCH | oklch(29% 0.034 173.8) |
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 #18312A | 13.89:1 | AAA | Lc -103.5 | Preferred for body text |
| Black text on #18312A | 1.51:1 | Fails | Lc 0.0 | Not readable |
| #18312A text on white | 13.89:1 | AAA | Lc 100.4 | Preferred for body text |
| #18312A text on black | 1.51:1 | 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
#F2F7F5
oklch(97.2% 0.006 170.4)
-
Step 100
100
#E2ECE9
oklch(93.5% 0.011 176.3)
-
Step 200
200
#CBDED8
oklch(88.5% 0.022 174.9)
-
Step 300
300
#A7CABE
oklch(81% 0.041 172.4)
-
Step 400
400
#76AE9D
oklch(70.7% 0.064 173.4)
-
Step 500
500
#4E9A85
oklch(63.1% 0.083 173.3)
-
Step 600
600
#2C846F
oklch(55.5% 0.089 174)
-
Step 700
700
#1D705D
oklch(49.1% 0.083 173.9)
-
Step 800
800
#1C5B4C
oklch(42.7% 0.068 174)
-
Step 900
900
#1E4B3F
oklch(37.7% 0.054 173.3)
-
Step 950
950 (this color)
#18312A
oklch(29% 0.034 173.8)
#18312A 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) | #2F2E2A | 0.035 |
| Deuteranopia (no green cones) | #2B2B2A | 0.033 |
| Tritanopia (no blue cones) | #0F312F | 0.012 |
| Achromatopsia (no color) | #2C2C2C | 0.034 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #18312A
#18312A
oklch(29% 0.034 173.8)
- #39242D
#39242D
oklch(29% 0.035 352.2)
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 #18312A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pakistan Green #283618 ΔE 0.043
- Jet #212529 ΔE 0.043
- Gunmetal #293241 ΔE 0.050
- Dark #1B2431 ΔE 0.053
- Oxford Blue #1B263B ΔE 0.058
- Space Cadet #2B2D42 ΔE 0.059
- Midnight Green #073B4C ΔE 0.060
- Very Dark Green #062E03 ΔE 0.063
Use #18312A 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.