#1FA3D5
Closest named color: Turquoise Blue (#06B1C4). oklch(67.2% 0.128 230.4), rgb(31, 163, 213).
Aa
Black text reads best on this color (7.25:1).
About this color
#1FA3D5 is a medium-light, moderately saturated blue. In OKLCH its lightness is 67%, its chroma 0.128 and its hue 230°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.054 away. Black text reads best on it, at 7.25:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.128) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 7.25:1 |
| White text | 2.89:1 |
Values
| HEX | #1FA3D5 |
| RGB | rgb(31, 163, 213) |
| HSL | hsl(196, 75%, 48%) |
| OKLCH | oklch(67.2% 0.128 230.4) |
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 #1FA3D5 | 2.89:1 | Fails | Lc -60.0 | Content text, not long reading |
| Black text on #1FA3D5 | 7.25:1 | AAA | Lc 49.3 | Large or bold text, headings |
| #1FA3D5 text on white | 2.89:1 | Fails | Lc 54.7 | Large or bold text, headings |
| #1FA3D5 text on black | 7.25:1 | AAA | Lc -47.1 | 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 400.
-
Step 50
50
#EFF7FB
oklch(97.1% 0.01 228.9)
-
Step 100
100
#DBEDF7
oklch(93.6% 0.023 231.8)
-
Step 200
200
#BCDFF1
oklch(88.4% 0.044 230.3)
-
Step 300
300
#8ACBEB
oklch(81% 0.08 230.3)
-
Step 400
400 (this color)
#1FA3D5
oklch(67.2% 0.128 230.4)
-
Step 500
500
#0096C7
oklch(63.1% 0.126 230.5)
-
Step 600
600
#007EA8
oklch(55.6% 0.112 230.6)
-
Step 700
700
#006A8E
oklch(49.1% 0.099 230.6)
-
Step 800
800
#005775
oklch(42.8% 0.086 230.3)
-
Step 900
900
#004862
oklch(37.7% 0.076 230.8)
-
Step 950
950
#002B3C
oklch(27.1% 0.054 230.4)
#1FA3D5 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) | #89A1D7 | 0.086 |
| Deuteranopia (no green cones) | #7291D4 | 0.073 |
| Tritanopia (no blue cones) | #00B1B4 | 0.073 |
| Achromatopsia (no color) | #989898 | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1FA3D5
#1FA3D5
oklch(67.2% 0.128 230.4)
- #D37C48
#D37C48
oklch(67.1% 0.127 50.1)
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 #1FA3D5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.054
- Chefchaouen Blue #4895EF ΔE 0.064
- Dark Sky Blue #448EE4 ΔE 0.068
- Cornflower Blue #6495ED ΔE 0.073
- Faded Blue #658CBB ΔE 0.073
- Greyblue #77A1B5 ΔE 0.075
- Water Blue #0E87CC ΔE 0.080
- Blue NCS #118AB2 ΔE 0.081
Use #1FA3D5 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.