#133239
Closest named color: Gunmetal (#293241). oklch(29.7% 0.039 214.6), rgb(19, 50, 57).
Aa
White text reads best on this color (13.60:1).
About this color
#133239 is a dark, muted teal or cyan. In OKLCH its lightness is 30%, its chroma 0.039 and its hue 215°. Its hue sits on the cool side of the wheel. The nearest named color is Gunmetal (#293241), ΔE 0.033 away. White text reads best on it, at 13.60:1.
| Hue family | Teals and cyans |
| Lightness | dark (30%) |
| Chroma | muted (0.039) |
| Temperature | cool |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.54:1 |
| White text | 13.60:1 |
Values
| HEX | #133239 |
| RGB | rgb(19, 50, 57) |
| HSL | hsl(191, 50%, 15%) |
| OKLCH | oklch(29.7% 0.039 214.6) |
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 #133239 | 13.60:1 | AAA | Lc -103.1 | Preferred for body text |
| Black text on #133239 | 1.54:1 | Fails | Lc 0.0 | Not readable |
| #133239 text on white | 13.60:1 | AAA | Lc 100.0 | Preferred for body text |
| #133239 text on black | 1.54:1 | 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
#F1F7F8
oklch(97.2% 0.007 208.8)
-
Step 100
100
#E1ECEF
oklch(93.6% 0.012 215.8)
-
Step 200
200
#C7DEE4
oklch(88.5% 0.026 215.2)
-
Step 300
300
#A0C9D3
oklch(81% 0.046 214.2)
-
Step 400
400
#68ADBD
oklch(70.8% 0.073 214.2)
-
Step 500
500
#3798AC
oklch(63.2% 0.093 214)
-
Step 600
600
#008197
oklch(55.5% 0.098 215.2)
-
Step 700
700
#006D7F
oklch(49.2% 0.087 214.3)
-
Step 800
800
#005968
oklch(42.7% 0.075 214.2)
-
Step 900
900
#0E4A56
oklch(37.9% 0.061 214.7)
-
Step 950
950 (this color)
#133239
oklch(29.7% 0.039 214.6)
#133239 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) | #2D3039 | 0.035 |
| Deuteranopia (no green cones) | #272C39 | 0.031 |
| Tritanopia (no blue cones) | #003534 | 0.021 |
| Achromatopsia (no color) | #2E2E2E | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #133239
#133239
oklch(29.7% 0.039 214.6)
- #3E2620
#3E2620
oklch(29.7% 0.038 34.7)
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 #133239, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.033
- Midnight Green #073B4C ΔE 0.039
- Space Cadet #2B2D42 ΔE 0.042
- Oxford Blue #1B263B ΔE 0.043
- Dark Blue Grey #1F3B4D ΔE 0.046
- Jet #212529 ΔE 0.047
- Dark #1B2431 ΔE 0.047
- Onyx #343A40 ΔE 0.056
Use #133239 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.