#153D3F
Closest named color: Midnight Green (#073B4C). oklch(33.3% 0.044 199.8), rgb(21, 61, 63).
Aa
White text reads best on this color (11.85:1).
About this color
#153D3F is a dark, muted teal or cyan. In OKLCH its lightness is 33%, its chroma 0.044 and its hue 200°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.027 away. White text reads best on it, at 11.85:1.
| Hue family | Teals and cyans |
| Lightness | dark (33%) |
| Chroma | muted (0.044) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.77:1 |
| White text | 11.85:1 |
Values
| HEX | #153D3F |
| RGB | rgb(21, 61, 63) |
| HSL | hsl(183, 50%, 16%) |
| OKLCH | oklch(33.3% 0.044 199.8) |
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 #153D3F | 11.85:1 | AAA | Lc -100.6 | Preferred for body text |
| Black text on #153D3F | 1.77:1 | Fails | Lc 0.0 | Not readable |
| #153D3F text on white | 11.85:1 | AAA | Lc 97.0 | Preferred for body text |
| #153D3F 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
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E3ECEC
oklch(93.6% 0.01 197)
-
Step 200
200
#CCDDDE
oklch(88.5% 0.018 201.1)
-
Step 300
300
#A9C8C9
oklch(81% 0.033 198.9)
-
Step 400
400
#79ABAE
oklch(70.7% 0.053 200.7)
-
Step 500
500
#54969A
oklch(63.1% 0.068 200.7)
-
Step 600
600
#358084
oklch(55.5% 0.074 200.1)
-
Step 700
700
#266C70
oklch(49% 0.069 200.5)
-
Step 800
800
#22585B
oklch(42.6% 0.057 200.3)
-
Step 900
900 (this color)
#153D3F
oklch(33.3% 0.044 199.8)
-
Step 950
950
#152B2C
oklch(27.1% 0.028 199.4)
#153D3F 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) | #383A3F | 0.045 |
| Deuteranopia (no green cones) | #32353F | 0.043 |
| Tritanopia (no blue cones) | #003F3D | 0.015 |
| Achromatopsia (no color) | #373737 | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #153D3F
#153D3F
oklch(33.3% 0.044 199.8)
- #4B2D2D
#4B2D2D
oklch(33.4% 0.045 19.7)
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 #153D3F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.027
- Dark Blue Grey #1F3B4D ΔE 0.031
- Onyx #343A40 ΔE 0.039
- Gunmetal #293241 ΔE 0.043
- Charcoal #264653 ΔE 0.047
- Dark Teal #014D4E ΔE 0.052
- Charcoal Grey #3C4142 ΔE 0.054
- Prussian Blue #1D3557 ΔE 0.058
Use #153D3F 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.