#4098F2
Closest named color: Chefchaouen Blue (#4895EF). oklch(66.9% 0.158 251.8), rgb(64, 152, 242).
Aa
Black text reads best on this color (6.99:1).
About this color
#4098F2 is a medium-light, vivid blue. In OKLCH its lightness is 67%, its chroma 0.158 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Chefchaouen Blue (#4895EF), ΔE 0.009 away. Black text reads best on it, at 6.99:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.158) |
| Temperature | cool |
| Nearest name | Chefchaouen Blue (#4895EF) |
| Black text | 6.99:1 |
| White text | 3.00:1 |
Values
| HEX | #4098F2 |
| RGB | rgb(64, 152, 242) |
| HSL | hsl(210, 87%, 60%) |
| OKLCH | oklch(66.9% 0.158 251.8) |
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 #4098F2 | 3.00:1 | AA large text | Lc -61.7 | Content text, not long reading |
| Black text on #4098F2 | 6.99:1 | AA | Lc 47.7 | Large or bold text, headings |
| #4098F2 text on white | 3.00:1 | AA large text | Lc 56.3 | Large or bold text, headings |
| #4098F2 text on black | 6.99:1 | AA | Lc -45.4 | 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
#EFF6FE
oklch(97% 0.013 251.6)
-
Step 100
100
#DDECFD
oklch(93.7% 0.028 251.5)
-
Step 200
200
#C0DCFD
oklch(88.5% 0.055 252.7)
-
Step 300
300
#91C5FF
oklch(80.9% 0.099 251.8)
-
Step 400
400 (this color)
#4098F2
oklch(66.9% 0.158 251.8)
-
Step 500
500
#008AF6
oklch(63% 0.189 252)
-
Step 600
600
#0074D0
oklch(55.6% 0.166 251.9)
-
Step 700
700
#0061B0
oklch(49% 0.147 252)
-
Step 800
800
#005091
oklch(42.8% 0.126 251.5)
-
Step 900
900
#00427A
oklch(37.7% 0.112 251.7)
-
Step 950
950
#00274C
oklch(27.1% 0.08 251.6)
#4098F2 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) | #6E9EF6 | 0.047 |
| Deuteranopia (no green cones) | #538DF0 | 0.030 |
| Tritanopia (no blue cones) | #00ADB9 | 0.119 |
| Achromatopsia (no color) | #959595 | 0.158 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4098F2
#4098F2
oklch(66.9% 0.158 251.8)
- #CA8400
#CA8400
oklch(66.9% 0.143 72.1)
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 #4098F2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chefchaouen Blue #4895EF ΔE 0.009
- Cornflower Blue #6495ED ΔE 0.030
- Dark Sky Blue #448EE4 ΔE 0.031
- Dodger Blue #1E90FF ΔE 0.037
- Soft Blue #6488EA ΔE 0.047
- Water Blue #0E87CC ΔE 0.076
- Periwinkle Blue #8F99FB ΔE 0.084
- Faded Blue #658CBB ΔE 0.084
Use #4098F2 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.