#15515B
Closest named color: Deep Teal (#00555A). oklch(40.2% 0.061 211), rgb(21, 81, 91).
Aa
White text reads best on this color (8.89:1).
About this color
#15515B is a dark, muted teal or cyan. In OKLCH its lightness is 40%, its chroma 0.061 and its hue 211°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.015 away. White text reads best on it, at 8.89:1.
| Hue family | Teals and cyans |
| Lightness | dark (40%) |
| Chroma | muted (0.061) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.35:1 |
| White text | 8.89:1 |
Values
| HEX | #15515B |
| RGB | rgb(21, 81, 91) |
| HSL | hsl(189, 63%, 22%) |
| OKLCH | oklch(40.2% 0.061 211) |
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 #15515B | 8.89:1 | AAA | Lc -94.6 | Preferred for body text |
| Black text on #15515B | 2.35:1 | Fails | Lc 13.9 | Not readable |
| #15515B text on white | 8.89:1 | AAA | Lc 90.1 | Preferred for body text |
| #15515B text on black | 2.35:1 | Fails | Lc -12.2 | 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 800.
-
Step 50
50
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E2ECEE
oklch(93.6% 0.011 211)
-
Step 200
200
#CBDDE1
oklch(88.5% 0.02 212.6)
-
Step 300
300
#A7C7CE
oklch(80.8% 0.036 212.4)
-
Step 400
400
#76ABB5
oklch(70.8% 0.058 210.6)
-
Step 500
500
#4F96A3
oklch(63.2% 0.074 210.8)
-
Step 600
600
#2F808E
oklch(55.7% 0.08 211)
-
Step 700
700
#206C78
oklch(49.1% 0.074 210.2)
-
Step 800
800 (this color)
#15515B
oklch(40.2% 0.061 211)
-
Step 900
900
#1F4850
oklch(37.6% 0.048 212.1)
-
Step 950
950
#132A2F
oklch(26.9% 0.03 213.4)
#15515B 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) | #494E5C | 0.057 |
| Deuteranopia (no green cones) | #3F475B | 0.051 |
| Tritanopia (no blue cones) | #005554 | 0.022 |
| Achromatopsia (no color) | #4A4A4A | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #15515B
#15515B
oklch(40.2% 0.061 211)
- #653B34
#653B34
oklch(40.1% 0.061 30.2)
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 #15515B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.015
- Dark Slate Gray #2F4F4F ΔE 0.027
- Dark Teal #014D4E ΔE 0.027
- Charcoal #264653 ΔE 0.035
- Dark Blue Green #005249 ΔE 0.035
- Dark Grey Blue #29465B ΔE 0.038
- Petrol #005F6A ΔE 0.045
- Charcoal Grey #3C4142 ΔE 0.063
Use #15515B 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.