#6372F9
Closest named color: Cornflower (#6A79F7). oklch(61.3% 0.2 274.1), rgb(99, 114, 249).
Aa
Black text reads best on this color (5.30:1).
About this color
#6372F9 is a medium-dark, vivid blue. In OKLCH its lightness is 61%, its chroma 0.200 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower (#6A79F7), ΔE 0.021 away. Black text reads best on it, at 5.30:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.200) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 5.30:1 |
| White text | 3.95:1 |
Values
| HEX | #6372F9 |
| RGB | rgb(99, 114, 249) |
| HSL | hsl(234, 93%, 68%) |
| OKLCH | oklch(61.3% 0.2 274.1) |
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 #6372F9 | 3.95:1 | AA large text | Lc -72.1 | Content text, not long reading |
| Black text on #6372F9 | 5.30:1 | AA | Lc 37.5 | Non-text elements, placeholder text |
| #6372F9 text on white | 3.95:1 | AA large text | Lc 66.6 | Content text, not long reading |
| #6372F9 text on black | 5.30:1 | AA | Lc -35.1 | 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
#F2F5FF
oklch(97.1% 0.014 272.7)
-
Step 100
100
#E4E9FD
oklch(93.6% 0.028 274.7)
-
Step 200
200
#CED7FE
oklch(88.5% 0.055 275)
-
Step 300
300
#ADBCFF
oklch(80.8% 0.096 274.3)
-
Step 400
400
#8497FF
oklch(70.7% 0.153 274)
-
Step 500
500 (this color)
#6372F9
oklch(61.3% 0.2 274.1)
-
Step 600
600
#535CEF
oklch(55.7% 0.217 274.2)
-
Step 700
700
#444AD0
oklch(49.1% 0.202 274.1)
-
Step 800
800
#373EA8
oklch(42.7% 0.167 274)
-
Step 900
900
#2F3785
oklch(37.8% 0.129 274)
-
Step 950
950
#1B214E
oklch(27.1% 0.082 273.9)
#6372F9 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) | #0787FE | 0.071 |
| Deuteranopia (no green cones) | #007AF6 | 0.065 |
| Tritanopia (no blue cones) | #0092AB | 0.171 |
| Achromatopsia (no color) | #808080 | 0.200 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6372F9
#6372F9
oklch(61.3% 0.2 274.1)
- #9D8200
#9D8200
oklch(61.4% 0.126 94.3)
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 #6372F9, closest first.
No curated palette has a color within ΔE 0.04 of #6372F9.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower #6A79F7 ΔE 0.021
- Medium Slate Blue #7B68EE ΔE 0.040
- Clear Blue #247AFD ΔE 0.054
- Royal Blue #4169E1 ΔE 0.060
- Neon Blue #4361EE ΔE 0.061
- Soft Blue #6488EA ΔE 0.062
- Dark Periwinkle #665FD1 ΔE 0.072
- Cerulean Blue #056EEE ΔE 0.074
Use #6372F9 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.