#1E3733
Closest named color: Gunmetal (#293241). oklch(31.5% 0.032 182.9), rgb(30, 55, 51).
Aa
White text reads best on this color (12.73:1).
About this color
#1E3733 is a dark, muted teal or cyan. In OKLCH its lightness is 32%, its chroma 0.032 and its hue 183°. Its hue sits on the cool side of the wheel. The nearest named color is Gunmetal (#293241), ΔE 0.039 away. White text reads best on it, at 12.73:1.
| Hue family | Teals and cyans |
| Lightness | dark (32%) |
| Chroma | muted (0.032) |
| Temperature | cool |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.64:1 |
| White text | 12.73:1 |
Values
| HEX | #1E3733 |
| RGB | rgb(30, 55, 51) |
| HSL | hsl(170, 29%, 17%) |
| OKLCH | oklch(31.5% 0.032 182.9) |
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 #1E3733 | 12.73:1 | AAA | Lc -102.1 | Preferred for body text |
| Black text on #1E3733 | 1.64:1 | Fails | Lc 0.0 | Not readable |
| #1E3733 text on white | 12.73:1 | AAA | Lc 98.7 | Preferred for body text |
| #1E3733 text on black | 1.64:1 | 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
#F2F7F6
oklch(97.2% 0.005 183)
-
Step 100
100
#E2ECEA
oklch(93.5% 0.011 182.9)
-
Step 200
200
#CBDEDA
oklch(88.5% 0.021 181.8)
-
Step 300
300
#A7C9C3
oklch(80.9% 0.037 183.5)
-
Step 400
400
#75ADA4
oklch(70.6% 0.06 183.4)
-
Step 500
500
#4D998E
oklch(63.1% 0.078 183.2)
-
Step 600
600
#2B8378
oklch(55.5% 0.084 183.4)
-
Step 700
700
#1C6F65
oklch(49.1% 0.078 183.2)
-
Step 800
800
#1B5A52
oklch(42.6% 0.064 183.2)
-
Step 900
900
#1E4A44
oklch(37.6% 0.05 183.5)
-
Step 950
950 (this color)
#1E3733
oklch(31.5% 0.032 182.9)
#1E3733 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) | #353433 | 0.035 |
| Deuteranopia (no green cones) | #303133 | 0.032 |
| Tritanopia (no blue cones) | #153836 | 0.010 |
| Achromatopsia (no color) | #323232 | 0.032 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1E3733
#1E3733
oklch(31.5% 0.032 182.9)
- #402B30
#402B30
oklch(31.6% 0.032 3.4)
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 #1E3733, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.039
- Onyx #343A40 ΔE 0.042
- Pakistan Green #283618 ΔE 0.043
- Midnight Green #073B4C ΔE 0.044
- Dark Blue Grey #1F3B4D ΔE 0.045
- Space Cadet #2B2D42 ΔE 0.053
- Jet #212529 ΔE 0.061
- Charcoal Grey #3C4142 ΔE 0.062
Use #1E3733 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.