#136C8F
Closest named color: Peacock Blue (#016795). oklch(49.9% 0.095 231), rgb(19, 108, 143).
Aa
White text reads best on this color (5.88:1).
About this color
#136C8F is a medium-dark, moderately saturated blue. In OKLCH its lightness is 50%, its chroma 0.095 and its hue 231°. Its hue sits on the cool side of the wheel. The nearest named color is Peacock Blue (#016795), ΔE 0.021 away. White text reads best on it, at 5.88:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.095) |
| Temperature | cool |
| Nearest name | Peacock Blue (#016795) |
| Black text | 3.56:1 |
| White text | 5.88:1 |
Values
| HEX | #136C8F |
| RGB | rgb(19, 108, 143) |
| HSL | hsl(197, 77%, 32%) |
| OKLCH | oklch(49.9% 0.095 231) |
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 #136C8F | 5.88:1 | AA | Lc -84.2 | Fine for body text |
| Black text on #136C8F | 3.56:1 | AA large text | Lc 25.1 | Dividers and decoration only |
| #136C8F text on white | 5.88:1 | AA | Lc 79.0 | Fine for body text |
| #136C8F text on black | 3.56:1 | AA large text | Lc -22.8 | 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 700.
-
Step 50
50
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E1ECF1
oklch(93.6% 0.014 226.6)
-
Step 200
200
#C9DDE7
oklch(88.6% 0.025 229.2)
-
Step 300
300
#A3C7D9
oklch(80.9% 0.046 229.7)
-
Step 400
400
#70A9C6
oklch(70.6% 0.073 231.3)
-
Step 500
500
#4694B8
oklch(63.2% 0.094 230.7)
-
Step 600
600
#1F7DA4
oklch(55.5% 0.102 231.3)
-
Step 700
700 (this color)
#136C8F
oklch(49.9% 0.095 231)
-
Step 800
800
#125672
oklch(42.7% 0.079 231.2)
-
Step 900
900
#19475C
oklch(37.7% 0.061 231.4)
-
Step 950
950
#102A36
oklch(27.1% 0.039 230.5)
#136C8F 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) | #5A6B91 | 0.063 |
| Deuteranopia (no green cones) | #4A5F8E | 0.054 |
| Tritanopia (no blue cones) | #007678 | 0.056 |
| Achromatopsia (no color) | #646464 | 0.095 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #136C8F
#136C8F
oklch(49.9% 0.095 231)
- #8D522D
#8D522D
oklch(50% 0.094 51.2)
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 #136C8F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Peacock Blue #016795 ΔE 0.021
- Ocean Blue #03719C ΔE 0.022
- Sea Blue #047495 ΔE 0.024
- Denim #3B638C ΔE 0.034
- Muted Blue #3B719F ΔE 0.041
- Ocean #017B92 ΔE 0.045
- Deep Aqua #08787F ΔE 0.051
- Light Navy Blue #2E5A88 ΔE 0.053
Use #136C8F 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.