#15535F
Closest named color: Deep Teal (#00555A). oklch(41% 0.063 213.6), rgb(21, 83, 95).
Aa
White text reads best on this color (8.62:1).
About this color
#15535F is a dark, muted teal or cyan. In OKLCH its lightness is 41%, its chroma 0.063 and its hue 214°. 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 8.62:1.
| Hue family | Teals and cyans |
| Lightness | dark (41%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.43:1 |
| White text | 8.62:1 |
Values
| HEX | #15535F |
| RGB | rgb(21, 83, 95) |
| HSL | hsl(190, 64%, 23%) |
| OKLCH | oklch(41% 0.063 213.6) |
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 #15535F | 8.62:1 | AAA | Lc -93.9 | Preferred for body text |
| Black text on #15535F | 2.43:1 | Fails | Lc 14.7 | Not readable |
| #15535F text on white | 8.62:1 | AAA | Lc 89.3 | Fine for body text |
| #15535F text on black | 2.43:1 | Fails | Lc -12.9 | 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
#A6C7CF
oklch(80.8% 0.037 214)
-
Step 400
400
#75ABB7
oklch(70.8% 0.059 213.1)
-
Step 500
500
#4D96A5
oklch(63.2% 0.076 212.7)
-
Step 600
600
#2C8090
oklch(55.7% 0.082 212.8)
-
Step 700
700
#1D6C7B
oklch(49.2% 0.077 213.3)
-
Step 800
800 (this color)
#15535F
oklch(41% 0.063 213.6)
-
Step 900
900
#1E4851
oklch(37.6% 0.049 213.8)
-
Step 950
950
#132A30
oklch(26.9% 0.031 216.7)
#15535F 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) | #4A5060 | 0.057 |
| Deuteranopia (no green cones) | #40485F | 0.053 |
| Tritanopia (no blue cones) | #005857 | 0.026 |
| Achromatopsia (no color) | #4C4C4C | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #15535F
#15535F
oklch(41% 0.063 213.6)
- #683D33
#683D33
oklch(40.9% 0.063 33.9)
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 #15535F, 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 0.031
- Dark Teal #014D4E ΔE 0.034
- Petrol #005F6A ΔE 0.037
- Dark Blue Green #005249 ΔE 0.040
- Charcoal #264653 ΔE 0.041
- Dark Grey Blue #29465B ΔE 0.042
- Deep Sea Blue #015482 ΔE 0.059
Use #15535F 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.