#135F6F
Closest named color: Petrol (#005F6A). oklch(44.9% 0.074 215.9), rgb(19, 95, 111).
Aa
White text reads best on this color (7.25:1).
About this color
#135F6F is a dark, moderately saturated teal or cyan. In OKLCH its lightness is 45%, its chroma 0.074 and its hue 216°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.011 away. White text reads best on it, at 7.25:1.
| Hue family | Teals and cyans |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.89:1 |
| White text | 7.25:1 |
Values
| HEX | #135F6F |
| RGB | rgb(19, 95, 111) |
| HSL | hsl(190, 71%, 25%) |
| OKLCH | oklch(44.9% 0.074 215.9) |
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 #135F6F | 7.25:1 | AAA | Lc -89.7 | Fine for body text |
| Black text on #135F6F | 2.89:1 | Fails | Lc 19.2 | Dividers and decoration only |
| #135F6F text on white | 7.25:1 | AAA | Lc 84.8 | Fine for body text |
| #135F6F text on black | 2.89:1 | Fails | Lc -17.2 | Dividers and decoration only |
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
#F1F6F8
oklch(97% 0.006 223.5)
-
Step 100
100
#E1ECEF
oklch(93.6% 0.012 215.8)
-
Step 200
200
#C8DDE3
oklch(88.4% 0.024 216.7)
-
Step 300
300
#A2C8D2
oklch(80.9% 0.043 215.5)
-
Step 400
400
#6DACBC
oklch(70.8% 0.069 215.6)
-
Step 500
500
#3F97AB
oklch(63.1% 0.088 215.2)
-
Step 600
600
#108197
oklch(55.7% 0.096 215.9)
-
Step 700
700
#006D80
oklch(49.2% 0.087 215.3)
-
Step 800
800 (this color)
#135F6F
oklch(44.9% 0.074 215.9)
-
Step 900
900
#144955
oklch(37.7% 0.058 216)
-
Step 950
950
#0E2B32
oklch(27.1% 0.037 216.1)
#135F6F 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) | #545C70 | 0.065 |
| Deuteranopia (no green cones) | #48536F | 0.058 |
| Tritanopia (no blue cones) | #006564 | 0.031 |
| Achromatopsia (no color) | #575757 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #135F6F
#135F6F
oklch(44.9% 0.074 215.9)
- #784638
#784638
oklch(45% 0.073 36.5)
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 #135F6F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.011
- Dark Aqua #05696B ΔE 0.035
- Deep Teal #00555A ΔE 0.044
- YInMn Blue #415A77 ΔE 0.045
- Dark Green Blue #1F6357 ΔE 0.046
- Light Navy Blue #2E5A88 ΔE 0.053
- Deep Sea Blue #015482 ΔE 0.054
- Denim #3B638C ΔE 0.061
Use #135F6F 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.