#6379F0
Closest named color: Cornflower (#6A79F7). oklch(61.9% 0.179 272.3), rgb(99, 121, 240).
Aa
Black text reads best on this color (5.52:1).
About this color
#6379F0 is a medium-dark, vivid blue. In OKLCH its lightness is 62%, its chroma 0.179 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower (#6A79F7), ΔE 0.014 away. Black text reads best on it, at 5.52:1.
| Hue family | Blues |
| Lightness | medium-dark (62%) |
| Chroma | vivid (0.179) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 5.52:1 |
| White text | 3.80:1 |
Values
| HEX | #6379F0 |
| RGB | rgb(99, 121, 240) |
| HSL | hsl(231, 82%, 66%) |
| OKLCH | oklch(61.9% 0.179 272.3) |
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 #6379F0 | 3.80:1 | AA large text | Lc -70.8 | Content text, not long reading |
| Black text on #6379F0 | 5.52:1 | AA | Lc 38.8 | Non-text elements, placeholder text |
| #6379F0 text on white | 3.80:1 | AA large text | Lc 65.3 | Content text, not long reading |
| #6379F0 text on black | 5.52:1 | AA | Lc -36.4 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E4E9FB
oklch(93.6% 0.025 273.5)
-
Step 200
200
#CED8FA
oklch(88.5% 0.048 272.4)
-
Step 300
300
#ADBEFA
oklch(81% 0.087 272.1)
-
Step 400
400
#8399F7
oklch(70.6% 0.14 272.4)
-
Step 500
500 (this color)
#6379F0
oklch(61.9% 0.179 272.3)
-
Step 600
600
#5062E3
oklch(55.6% 0.195 272.4)
-
Step 700
700
#4150C5
oklch(49% 0.181 272.3)
-
Step 800
800
#35439F
oklch(42.7% 0.149 272)
-
Step 900
900
#2E397E
oklch(37.6% 0.117 272.7)
-
Step 950
950
#1B224A
oklch(27% 0.074 273)
#6379F0 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) | #3A89F4 | 0.050 |
| Deuteranopia (no green cones) | #1C7DEE | 0.057 |
| Tritanopia (no blue cones) | #0094A9 | 0.156 |
| Achromatopsia (no color) | #838383 | 0.179 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6379F0
#6379F0
oklch(61.9% 0.179 272.3)
- #A18300
#A18300
oklch(62% 0.127 92.6)
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 #6379F0, closest first.
No curated palette has a color within ΔE 0.04 of #6379F0.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower #6A79F7 ΔE 0.014
- Soft Blue #6488EA ΔE 0.041
- Medium Slate Blue #7B68EE ΔE 0.048
- Clear Blue #247AFD ΔE 0.056
- Royal Blue #4169E1 ΔE 0.063
- Dark Sky Blue #448EE4 ΔE 0.064
- Periwinkle #8E82FE ΔE 0.068
- Lavender Blue #8B88F8 ΔE 0.070
Use #6379F0 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.