#133838
Closest named color: Midnight Green (#073B4C). oklch(31.4% 0.042 195.2), rgb(19, 56, 56).
Aa
White text reads best on this color (12.72:1).
About this color
#133838 is a dark, muted teal or cyan. In OKLCH its lightness is 31%, its chroma 0.042 and its hue 195°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.034 away. White text reads best on it, at 12.72:1.
| Hue family | Teals and cyans |
| Lightness | dark (31%) |
| Chroma | muted (0.042) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.65:1 |
| White text | 12.72:1 |
Values
| HEX | #133838 |
| RGB | rgb(19, 56, 56) |
| HSL | hsl(180, 49%, 15%) |
| OKLCH | oklch(31.4% 0.042 195.2) |
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 #133838 | 12.72:1 | AAA | Lc -102.0 | Preferred for body text |
| Black text on #133838 | 1.65:1 | Fails | Lc 0.0 | Not readable |
| #133838 text on white | 12.72:1 | AAA | Lc 98.6 | Preferred for body text |
| #133838 text on black | 1.65:1 | 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
#F1F7F7
oklch(97.2% 0.006 197.1)
-
Step 100
100
#E0EDED
oklch(93.6% 0.014 196.9)
-
Step 200
200
#C5DFDF
oklch(88.5% 0.028 196.7)
-
Step 300
300
#9CCBCB
oklch(80.9% 0.049 196.2)
-
Step 400
400
#60B0B0
oklch(70.7% 0.079 195.5)
-
Step 500
500
#209C9D
oklch(63.1% 0.101 195.8)
-
Step 600
600
#008485
oklch(55.6% 0.095 195.7)
-
Step 700
700
#006F70
oklch(49.1% 0.084 195.9)
-
Step 800
800
#005B5B
oklch(42.7% 0.073 194.8)
-
Step 900
900
#004C4C
oklch(37.7% 0.064 194.8)
-
Step 950
950 (this color)
#133838
oklch(31.4% 0.042 195.2)
#133838 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) | #343538 | 0.043 |
| Deuteranopia (no green cones) | #2E3138 | 0.040 |
| Tritanopia (no blue cones) | #003A38 | 0.013 |
| Achromatopsia (no color) | #333333 | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #133838
#133838
oklch(31.4% 0.042 195.2)
- #44282A
#44282A
oklch(31.3% 0.042 15.1)
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 #133838, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.034
- Gunmetal #293241 ΔE 0.040
- Dark Blue Grey #1F3B4D ΔE 0.041
- Onyx #343A40 ΔE 0.047
- Pakistan Green #283618 ΔE 0.052
- Space Cadet #2B2D42 ΔE 0.054
- Prussian Blue #1D3557 ΔE 0.062
- Jet #212529 ΔE 0.064
Use #133838 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.