#0180A4
Closest named color: Teal Blue (#01889F). oklch(55.9% 0.107 226.3), rgb(1, 128, 164).
Aa
Black text reads best on this color (4.62:1).
About this color
#0180A4 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 56%, its chroma 0.107 and its hue 226°. Its hue sits on the cool side of the wheel. The nearest named color is Teal Blue (#01889F), ΔE 0.028 away. Black text reads best on it, at 4.62:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.107) |
| Temperature | cool |
| Nearest name | Teal Blue (#01889F) |
| Black text | 4.62:1 |
| White text | 4.54:1 |
Values
| HEX | #0180A4 |
| RGB | rgb(1, 128, 164) |
| HSL | hsl(193, 99%, 32%) |
| OKLCH | oklch(55.9% 0.107 226.3) |
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 #0180A4 | 4.54:1 | AA | Lc -76.4 | Fine for body text |
| Black text on #0180A4 | 4.62:1 | AA | Lc 33.1 | Non-text elements, placeholder text |
| #0180A4 text on white | 4.54:1 | AA | Lc 70.9 | Content text, not long reading |
| #0180A4 text on black | 4.62:1 | AA | Lc -30.7 | Non-text elements, placeholder text |
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 600.
-
Step 50
50
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E1ECF1
oklch(93.6% 0.014 226.6)
-
Step 200
200
#C8DDE7
oklch(88.5% 0.026 227.9)
-
Step 300
300
#A0C8D9
oklch(81% 0.049 225.7)
-
Step 400
400
#6AABC6
oklch(70.8% 0.077 226.4)
-
Step 500
500
#3A95B7
oklch(63% 0.099 226.5)
-
Step 600
600 (this color)
#0180A4
oklch(55.9% 0.107 226.3)
-
Step 700
700
#006B89
oklch(49.1% 0.094 225.7)
-
Step 800
800
#005771
oklch(42.6% 0.082 226.6)
-
Step 900
900
#11485C
oklch(37.7% 0.064 227.2)
-
Step 950
950
#0D2A36
oklch(26.9% 0.041 228.4)
#0180A4 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) | #6C7DA6 | 0.079 |
| Deuteranopia (no green cones) | #5A70A4 | 0.069 |
| Tritanopia (no blue cones) | #008A8C | 0.055 |
| Achromatopsia (no color) | #767676 | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0180A4
#0180A4
oklch(55.9% 0.107 226.3)
- #A75E3A
#A75E3A
oklch(55.9% 0.108 46)
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 #0180A4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal Blue #01889F ΔE 0.028
- Ocean #017B92 ΔE 0.029
- Nice Blue #107AB0 ΔE 0.029
- Blue NCS #118AB2 ΔE 0.034
- Cerulean #457B9D ΔE 0.034
- Sea Blue #047495 ΔE 0.039
- Ocean Blue #03719C ΔE 0.044
- Stormy Blue #507B9C ΔE 0.045
Use #0180A4 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.