#153333
Closest named color: Gunmetal (#293241). oklch(29.8% 0.036 195.4), rgb(21, 51, 51).
Aa
White text reads best on this color (13.52:1).
About this color
#153333 is a dark, muted teal or cyan. In OKLCH its lightness is 30%, its chroma 0.036 and its hue 195°. Its hue sits on the cool side of the wheel. The nearest named color is Gunmetal (#293241), ΔE 0.040 away. White text reads best on it, at 13.52:1.
| Hue family | Teals and cyans |
| Lightness | dark (30%) |
| Chroma | muted (0.036) |
| Temperature | cool |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.55:1 |
| White text | 13.52:1 |
Values
| HEX | #153333 |
| RGB | rgb(21, 51, 51) |
| HSL | hsl(180, 42%, 14%) |
| OKLCH | oklch(29.8% 0.036 195.4) |
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 #153333 | 13.52:1 | AAA | Lc -103.0 | Preferred for body text |
| Black text on #153333 | 1.55:1 | Fails | Lc 0.0 | Not readable |
| #153333 text on white | 13.52:1 | AAA | Lc 99.9 | Preferred for body text |
| #153333 text on black | 1.55:1 | 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
#E1EDEC
oklch(93.7% 0.013 190.9)
-
Step 200
200
#C8DEDE
oklch(88.4% 0.023 196.7)
-
Step 300
300
#A2CAC9
oklch(81% 0.042 194.5)
-
Step 400
400
#6CAEAE
oklch(70.7% 0.067 195.7)
-
Step 500
500
#3D9A9A
oklch(63.2% 0.087 195.2)
-
Step 600
600
#048485
oklch(55.6% 0.094 195.7)
-
Step 700
700
#006F70
oklch(49.1% 0.084 195.9)
-
Step 800
800
#015B5B
oklch(42.7% 0.073 194.8)
-
Step 900
900
#124B4B
oklch(37.8% 0.057 195)
-
Step 950
950 (this color)
#153333
oklch(29.8% 0.036 195.4)
#153333 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) | #303133 | 0.038 |
| Deuteranopia (no green cones) | #2B2D33 | 0.035 |
| Tritanopia (no blue cones) | #033533 | 0.014 |
| Achromatopsia (no color) | #2E2E2E | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #153333
#153333
oklch(29.8% 0.036 195.4)
- #3D2627
#3D2627
oklch(29.8% 0.035 16.5)
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 #153333, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.040
- Midnight Green #073B4C ΔE 0.045
- Jet #212529 ΔE 0.048
- Space Cadet #2B2D42 ΔE 0.050
- Dark Blue Grey #1F3B4D ΔE 0.051
- Pakistan Green #283618 ΔE 0.052
- Oxford Blue #1B263B ΔE 0.052
- Dark #1B2431 ΔE 0.052
Use #153333 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.