#0183A0
Closest named color: Teal Blue (#01889F). oklch(56.5% 0.103 220.7), rgb(1, 131, 160).
Aa
Black text reads best on this color (4.75:1).
About this color
#0183A0 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 56%, its chroma 0.103 and its hue 221°. Its hue sits on the cool side of the wheel. The nearest named color is Teal Blue (#01889F), ΔE 0.016 away. Black text reads best on it, at 4.75:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.103) |
| Temperature | cool |
| Nearest name | Teal Blue (#01889F) |
| Black text | 4.75:1 |
| White text | 4.41:1 |
Values
| HEX | #0183A0 |
| RGB | rgb(1, 131, 160) |
| HSL | hsl(191, 99%, 32%) |
| OKLCH | oklch(56.5% 0.103 220.7) |
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 #0183A0 | 4.41:1 | AA large text | Lc -75.5 | Fine for body text |
| Black text on #0183A0 | 4.75:1 | AA | Lc 34.0 | Non-text elements, placeholder text |
| #0183A0 text on white | 4.41:1 | AA large text | Lc 70.0 | Content text, not long reading |
| #0183A0 text on black | 4.75:1 | AA | Lc -31.6 | 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
#F1F6F8
oklch(97% 0.006 223.5)
-
Step 100
100
#E1ECF0
oklch(93.6% 0.013 221.4)
-
Step 200
200
#C7DDE5
oklch(88.4% 0.026 221.6)
-
Step 300
300
#A0C8D6
oklch(80.9% 0.047 221.2)
-
Step 400
400
#69ACC1
oklch(70.8% 0.075 220)
-
Step 500
500
#3996B2
oklch(63% 0.095 221.4)
-
Step 600
600 (this color)
#0183A0
oklch(56.5% 0.103 220.7)
-
Step 700
700
#006C84
oklch(49.2% 0.09 220.2)
-
Step 800
800
#00586D
oklch(42.6% 0.078 221.3)
-
Step 900
900
#104958
oklch(37.7% 0.061 219.8)
-
Step 950
950
#0C2B34
oklch(27.1% 0.04 220.3)
#0183A0 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) | #727FA2 | 0.085 |
| Deuteranopia (no green cones) | #5F72A0 | 0.075 |
| Tritanopia (no blue cones) | #008C8C | 0.048 |
| Achromatopsia (no color) | #787878 | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0183A0
#0183A0
oklch(56.5% 0.103 220.7)
- #A85F45
#A85F45
oklch(56.4% 0.103 40.2)
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 #0183A0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal Blue #01889F ΔE 0.016
- Ocean #017B92 ΔE 0.029
- Blue NCS #118AB2 ΔE 0.032
- Cerulean #457B9D ΔE 0.037
- Nice Blue #107AB0 ΔE 0.041
- Sea Blue #047495 ΔE 0.045
- Stormy Blue #507B9C ΔE 0.046
- Dark Cyan #008B8B ΔE 0.047
Use #0183A0 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.