#03A0CA
Closest named color: Turquoise Blue (#06B1C4). oklch(65.7% 0.124 225.1), rgb(3, 160, 202).
Aa
Black text reads best on this color (6.88:1).
About this color
#03A0CA is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 66%, its chroma 0.124 and its hue 225°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.053 away. Black text reads best on it, at 6.88:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.124) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 6.88:1 |
| White text | 3.05:1 |
Values
| HEX | #03A0CA |
| RGB | rgb(3, 160, 202) |
| HSL | hsl(193, 97%, 40%) |
| OKLCH | oklch(65.7% 0.124 225.1) |
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 #03A0CA | 3.05:1 | AA large text | Lc -62.1 | Content text, not long reading |
| Black text on #03A0CA | 6.88:1 | AA | Lc 47.4 | Large or bold text, headings |
| #03A0CA text on white | 3.05:1 | AA large text | Lc 56.7 | Large or bold text, headings |
| #03A0CA text on black | 6.88:1 | AA | Lc -45.1 | Large or bold text, headings |
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 500.
-
Step 50
50
#F0F7FA
oklch(97.2% 0.008 225.1)
-
Step 100
100
#DEEDF3
oklch(93.7% 0.018 223.6)
-
Step 200
200
#C3DEEA
oklch(88.4% 0.033 226.4)
-
Step 300
300
#97CADE
oklch(81% 0.06 224.1)
-
Step 400
400
#55ADCE
oklch(70.6% 0.097 225.3)
-
Step 500
500 (this color)
#03A0CA
oklch(65.7% 0.124 225.1)
-
Step 600
600
#007FA2
oklch(55.5% 0.106 225.7)
-
Step 700
700
#006B88
oklch(49.1% 0.093 224.9)
-
Step 800
800
#005870
oklch(42.8% 0.081 224.4)
-
Step 900
900
#00495E
oklch(37.7% 0.071 225)
-
Step 950
950
#002B39
oklch(26.9% 0.051 225.5)
#03A0CA 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) | #899DCC | 0.094 |
| Deuteranopia (no green cones) | #728DC9 | 0.081 |
| Tritanopia (no blue cones) | #00ACAE | 0.063 |
| Achromatopsia (no color) | #949494 | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #03A0CA
#03A0CA
oklch(65.7% 0.124 225.1)
- #CF774D
#CF774D
oklch(65.8% 0.124 45.4)
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 #03A0CA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.053
- Blue NCS #118AB2 ΔE 0.066
- Faded Blue #658CBB ΔE 0.070
- Cadet Blue #5F9EA0 ΔE 0.072
- Water Blue #0E87CC ΔE 0.073
- Dark Sky Blue #448EE4 ΔE 0.074
- Greyblue #77A1B5 ΔE 0.076
- Chefchaouen Blue #4895EF ΔE 0.076
Use #03A0CA 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.