#019BC1
Closest named color: Blue NCS (#118AB2). oklch(64% 0.119 223.3), rgb(1, 155, 193).
Aa
Black text reads best on this color (6.45:1).
About this color
#019BC1 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 64%, its chroma 0.119 and its hue 223°. Its hue sits on the cool side of the wheel. The nearest named color is Blue NCS (#118AB2), ΔE 0.049 away. Black text reads best on it, at 6.45:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.119) |
| Temperature | cool |
| Nearest name | Blue NCS (#118AB2) |
| Black text | 6.45:1 |
| White text | 3.25:1 |
Values
| HEX | #019BC1 |
| RGB | rgb(1, 155, 193) |
| HSL | hsl(192, 99%, 38%) |
| OKLCH | oklch(64% 0.119 223.3) |
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 #019BC1 | 3.25:1 | AA large text | Lc -64.6 | Content text, not long reading |
| Black text on #019BC1 | 6.45:1 | AA | Lc 44.9 | Non-text elements, placeholder text |
| #019BC1 text on white | 3.25:1 | AA large text | Lc 59.2 | Large or bold text, headings |
| #019BC1 text on black | 6.45:1 | AA | Lc -42.6 | 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 500.
-
Step 50
50
#F0F7F9
oklch(97.1% 0.008 216.6)
-
Step 100
100
#DEEDF2
oklch(93.6% 0.017 219.7)
-
Step 200
200
#C3DEE9
oklch(88.4% 0.032 224.3)
-
Step 300
300
#98CADC
oklch(81% 0.058 222.1)
-
Step 400
400
#57ADCB
oklch(70.6% 0.094 223.4)
-
Step 500
500 (this color)
#019BC1
oklch(64% 0.119 223.3)
-
Step 600
600
#0080A0
oklch(55.7% 0.104 223.4)
-
Step 700
700
#006B87
oklch(49% 0.092 224)
-
Step 800
800
#00586F
oklch(42.7% 0.08 223.4)
-
Step 900
900
#00495D
oklch(37.7% 0.071 223.8)
-
Step 950
950
#012B38
oklch(26.9% 0.05 224.1)
#019BC1 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) | #8597C3 | 0.093 |
| Deuteranopia (no green cones) | #7088C1 | 0.082 |
| Tritanopia (no blue cones) | #00A6A7 | 0.059 |
| Achromatopsia (no color) | #8F8F8F | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #019BC1
#019BC1
oklch(64% 0.119 223.3)
- #C8724E
#C8724E
oklch(64% 0.12 43)
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 #019BC1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue NCS #118AB2 ΔE 0.049
- Turquoise Blue #06B1C4 ΔE 0.064
- Water Blue #0E87CC ΔE 0.064
- Faded Blue #658CBB ΔE 0.064
- Teal Green #0A9396 ΔE 0.065
- Cool Blue #4984B8 ΔE 0.066
- Teal Blue #01889F ΔE 0.067
- Dusty Blue #5A86AD ΔE 0.068
Use #019BC1 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.