#1FA1F4
Closest named color: Chefchaouen Blue (#4895EF). oklch(68.3% 0.16 244.1), rgb(31, 161, 244).
Aa
Black text reads best on this color (7.46:1).
About this color
#1FA1F4 is a medium-light, vivid blue. In OKLCH its lightness is 68%, its chroma 0.160 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is Chefchaouen Blue (#4895EF), ΔE 0.034 away. Black text reads best on it, at 7.46:1.
| Hue family | Blues |
| Lightness | medium-light (68%) |
| Chroma | vivid (0.160) |
| Temperature | cool |
| Nearest name | Chefchaouen Blue (#4895EF) |
| Black text | 7.46:1 |
| White text | 2.81:1 |
Values
| HEX | #1FA1F4 |
| RGB | rgb(31, 161, 244) |
| HSL | hsl(203, 91%, 54%) |
| OKLCH | oklch(68.3% 0.16 244.1) |
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 #1FA1F4 | 2.81:1 | Fails | Lc -58.8 | Large or bold text, headings |
| Black text on #1FA1F4 | 7.46:1 | AAA | Lc 50.5 | Large or bold text, headings |
| #1FA1F4 text on white | 2.81:1 | Fails | Lc 53.5 | Large or bold text, headings |
| #1FA1F4 text on black | 7.46:1 | AAA | Lc -48.3 | 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
#EEF7FE
oklch(97.1% 0.013 241)
-
Step 100
100
#DAEDFC
oklch(93.7% 0.029 241.6)
-
Step 200
200
#BBDEFC
oklch(88.5% 0.056 244.3)
-
Step 300
300
#87C8FD
oklch(80.9% 0.1 244.1)
-
Step 400
400 (this color)
#1FA1F4
oklch(68.3% 0.16 244.1)
-
Step 500
500
#0090E0
oklch(63% 0.157 244.4)
-
Step 600
600
#0079BD
oklch(55.5% 0.138 244.2)
-
Step 700
700
#0066A0
oklch(49.2% 0.121 244)
-
Step 800
800
#005384
oklch(42.6% 0.106 244.3)
-
Step 900
900
#00456F
oklch(37.6% 0.093 244.3)
-
Step 950
950
#002944
oklch(27% 0.066 243.6)
#1FA1F4 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) | #79A4F8 | 0.068 |
| Deuteranopia (no green cones) | #5B92F2 | 0.049 |
| Tritanopia (no blue cones) | #00B5BF | 0.110 |
| Achromatopsia (no color) | #9A9A9A | 0.160 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1FA1F4
#1FA1F4
oklch(68.3% 0.16 244.1)
- #D98100
#D98100
oklch(68.3% 0.154 64.3)
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 #1FA1F4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chefchaouen Blue #4895EF ΔE 0.034
- Cornflower Blue #6495ED ΔE 0.050
- Dodger Blue #1E90FF ΔE 0.051
- Dark Sky Blue #448EE4 ΔE 0.052
- Soft Blue #6488EA ΔE 0.073
- Deep Sky Blue #00BFFF ΔE 0.080
- Water Blue #0E87CC ΔE 0.087
- Turquoise Blue #06B1C4 ΔE 0.095
Use #1FA1F4 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.