#153D41
Closest named color: Midnight Green (#073B4C). oklch(33.4% 0.045 204.3), rgb(21, 61, 65).
Aa
White text reads best on this color (11.82:1).
About this color
#153D41 is a dark, muted teal or cyan. In OKLCH its lightness is 33%, its chroma 0.045 and its hue 204°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.024 away. White text reads best on it, at 11.82:1.
| Hue family | Teals and cyans |
| Lightness | dark (33%) |
| Chroma | muted (0.045) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.77:1 |
| White text | 11.82:1 |
Values
| HEX | #153D41 |
| RGB | rgb(21, 61, 65) |
| HSL | hsl(185, 51%, 17%) |
| OKLCH | oklch(33.4% 0.045 204.3) |
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 #153D41 | 11.82:1 | AAA | Lc -100.6 | Preferred for body text |
| Black text on #153D41 | 1.77:1 | Fails | Lc 0.0 | Not readable |
| #153D41 text on white | 11.82:1 | AAA | Lc 97.0 | Preferred for body text |
| #153D41 text on black | 1.77:1 | 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 900.
-
Step 50
50
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E3ECED
oklch(93.7% 0.01 204.9)
-
Step 200
200
#CCDDDF
oklch(88.5% 0.018 205.3)
-
Step 300
300
#A8C7CB
oklch(80.8% 0.034 206)
-
Step 400
400
#79ABB0
oklch(70.8% 0.053 203.8)
-
Step 500
500
#53969D
oklch(63.2% 0.069 204.3)
-
Step 600
600
#348088
oklch(55.6% 0.075 204.8)
-
Step 700
700
#266C73
oklch(49.1% 0.069 204.5)
-
Step 800
800
#21585E
oklch(42.7% 0.058 205.1)
-
Step 900
900 (this color)
#153D41
oklch(33.4% 0.045 204.3)
-
Step 950
950
#142B2D
oklch(27.1% 0.029 202.9)
#153D41 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) | #383A41 | 0.045 |
| Deuteranopia (no green cones) | #313541 | 0.041 |
| Tritanopia (no blue cones) | #00403E | 0.017 |
| Achromatopsia (no color) | #373737 | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #153D41
#153D41
oklch(33.4% 0.045 204.3)
- #4B2D2B
#4B2D2B
oklch(33.4% 0.045 23.9)
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 #153D41, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.024
- Dark Blue Grey #1F3B4D ΔE 0.027
- Onyx #343A40 ΔE 0.038
- Gunmetal #293241 ΔE 0.042
- Charcoal #264653 ΔE 0.045
- Dark Teal #014D4E ΔE 0.052
- Charcoal Grey #3C4142 ΔE 0.053
- Prussian Blue #1D3557 ΔE 0.055
Use #153D41 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.