#1FABFF
Closest named color: Deep Sky Blue (#00BFFF). oklch(71.2% 0.164 242.8), rgb(31, 171, 255).
Aa
Black text reads best on this color (8.32:1).
About this color
#1FABFF is a medium-light, vivid blue. In OKLCH its lightness is 71%, its chroma 0.164 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sky Blue (#00BFFF), ΔE 0.054 away. Black text reads best on it, at 8.32:1.
| Hue family | Blues |
| Lightness | medium-light (71%) |
| Chroma | vivid (0.164) |
| Temperature | cool |
| Nearest name | Deep Sky Blue (#00BFFF) |
| Black text | 8.32:1 |
| White text | 2.52:1 |
Values
| HEX | #1FABFF |
| RGB | rgb(31, 171, 255) |
| HSL | hsl(203, 100%, 56%) |
| OKLCH | oklch(71.2% 0.164 242.8) |
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 #1FABFF | 2.52:1 | Fails | Lc -53.9 | Large or bold text, headings |
| Black text on #1FABFF | 8.32:1 | AAA | Lc 55.1 | Large or bold text, headings |
| #1FABFF text on white | 2.52:1 | Fails | Lc 48.9 | Large or bold text, headings |
| #1FABFF text on black | 8.32:1 | AAA | Lc -53.1 | 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
#EEF7FE
oklch(97.1% 0.013 241)
-
Step 100
100
#DAEDFD
oklch(93.7% 0.03 243.4)
-
Step 200
200
#B9DEFC
oklch(88.4% 0.057 242.8)
-
Step 300
300
#84C9FE
oklch(81% 0.103 242.6)
-
Step 400
400 (this color)
#1FABFF
oklch(71.2% 0.164 242.8)
-
Step 500
500
#0091DD
oklch(63.1% 0.152 242.9)
-
Step 600
600
#007ABB
oklch(55.7% 0.134 242.9)
-
Step 700
700
#00669E
oklch(49% 0.119 243.2)
-
Step 800
800
#005482
oklch(42.8% 0.102 242.4)
-
Step 900
900
#00466D
oklch(37.8% 0.09 242.2)
-
Step 950
950
#002943
oklch(27% 0.065 242.6)
#1FABFF 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) | #83AEFF | 0.074 |
| Deuteranopia (no green cones) | #649AFD | 0.056 |
| Tritanopia (no blue cones) | #00C0C9 | 0.112 |
| Achromatopsia (no color) | #A3A3A3 | 0.164 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1FABFF
#1FABFF
oklch(71.2% 0.164 242.8)
- #E78700
#E78700
oklch(71.1% 0.162 62.9)
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 #1FABFF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sky Blue #00BFFF ΔE 0.054
- Chefchaouen Blue #4895EF ΔE 0.058
- Cornflower Blue #6495ED ΔE 0.066
- Dodger Blue #1E90FF ΔE 0.073
- Dark Sky Blue #448EE4 ΔE 0.079
- Bright Sky Blue #02CCFE ΔE 0.091
- Carolina Blue #8AB8FE ΔE 0.091
- Soft Blue #6488EA ΔE 0.094
Use #1FABFF 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.