#1CA3D9
Closest named color: Turquoise Blue (#06B1C4). oklch(67.3% 0.132 232.2), rgb(28, 163, 217).
Aa
Black text reads best on this color (7.29:1).
About this color
#1CA3D9 is a medium-light, moderately saturated blue. In OKLCH its lightness is 67%, its chroma 0.132 and its hue 232°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.058 away. Black text reads best on it, at 7.29:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.132) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 7.29:1 |
| White text | 2.88:1 |
Values
| HEX | #1CA3D9 |
| RGB | rgb(28, 163, 217) |
| HSL | hsl(197, 77%, 48%) |
| OKLCH | oklch(67.3% 0.132 232.2) |
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 #1CA3D9 | 2.88:1 | Fails | Lc -59.8 | Large or bold text, headings |
| Black text on #1CA3D9 | 7.29:1 | AAA | Lc 49.5 | Large or bold text, headings |
| #1CA3D9 text on white | 2.88:1 | Fails | Lc 54.5 | Large or bold text, headings |
| #1CA3D9 text on black | 7.29:1 | AAA | Lc -47.3 | 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 400.
-
Step 50
50
#EFF7FC
oklch(97.2% 0.011 234.8)
-
Step 100
100
#DBEDF7
oklch(93.6% 0.023 231.8)
-
Step 200
200
#BCDFF3
oklch(88.5% 0.046 233.1)
-
Step 300
300
#89CAED
oklch(80.8% 0.083 232.7)
-
Step 400
400 (this color)
#1CA3D9
oklch(67.3% 0.132 232.2)
-
Step 500
500
#0096CA
oklch(63.2% 0.129 232.1)
-
Step 600
600
#007EAA
oklch(55.7% 0.113 231.8)
-
Step 700
700
#006A90
oklch(49.2% 0.1 232)
-
Step 800
800
#005676
oklch(42.6% 0.087 232.3)
-
Step 900
900
#004863
oklch(37.7% 0.077 231.8)
-
Step 950
950
#002B3D
oklch(27.1% 0.055 231.9)
#1CA3D9 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) | #88A1DC | 0.086 |
| Deuteranopia (no green cones) | #7091D8 | 0.071 |
| Tritanopia (no blue cones) | #00B1B5 | 0.077 |
| Achromatopsia (no color) | #989898 | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1CA3D9
#1CA3D9
oklch(67.3% 0.132 232.2)
- #D57D42
#D57D42
oklch(67.4% 0.132 52.4)
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 #1CA3D9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.058
- Chefchaouen Blue #4895EF ΔE 0.059
- Dark Sky Blue #448EE4 ΔE 0.065
- Cornflower Blue #6495ED ΔE 0.069
- Faded Blue #658CBB ΔE 0.076
- Greyblue #77A1B5 ΔE 0.079
- Water Blue #0E87CC ΔE 0.079
- Blue NCS #118AB2 ΔE 0.084
Use #1CA3D9 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.