#6397E2
Closest named color: Cornflower Blue (#6495ED). oklch(67.2% 0.125 257.5), rgb(99, 151, 226).
Aa
Black text reads best on this color (7.05:1).
About this color
#6397E2 is a medium-light, moderately saturated blue. In OKLCH its lightness is 67%, its chroma 0.125 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.019 away. Black text reads best on it, at 7.05:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.125) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 7.05:1 |
| White text | 2.97:1 |
Values
| HEX | #6397E2 |
| RGB | rgb(99, 151, 226) |
| HSL | hsl(215, 69%, 64%) |
| OKLCH | oklch(67.2% 0.125 257.5) |
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 #6397E2 | 2.97:1 | Fails | Lc -61.5 | Content text, not long reading |
| Black text on #6397E2 | 7.05:1 | AAA | Lc 47.9 | Large or bold text, headings |
| #6397E2 text on white | 2.97:1 | Fails | Lc 56.2 | Large or bold text, headings |
| #6397E2 text on black | 7.05:1 | AAA | Lc -45.6 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E1EBF9
oklch(93.7% 0.022 256.7)
-
Step 200
200
#C8DBF6
oklch(88.6% 0.043 257.1)
-
Step 300
300
#A1C3F3
oklch(80.9% 0.078 257)
-
Step 400
400 (this color)
#6397E2
oklch(67.2% 0.125 257.5)
-
Step 500
500
#4588E8
oklch(63% 0.16 257.7)
-
Step 600
600
#2470D6
oklch(55.6% 0.173 257.5)
-
Step 700
700
#165DBA
oklch(49.1% 0.162 257.6)
-
Step 800
800
#154C96
oklch(42.6% 0.134 257.6)
-
Step 900
900
#194078
oklch(37.6% 0.105 257.9)
-
Step 950
950
#102646
oklch(27% 0.066 257.9)
#6397E2 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) | #789CE5 | 0.029 |
| Deuteranopia (no green cones) | #6890E0 | 0.018 |
| Tritanopia (no blue cones) | #00A8B2 | 0.111 |
| Achromatopsia (no color) | #969696 | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6397E2
#6397E2
oklch(67.2% 0.125 257.5)
- #C08B2B
#C08B2B
oklch(67.3% 0.125 77.8)
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 #6397E2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.019
- Chefchaouen Blue #4895EF ΔE 0.032
- Dark Sky Blue #448EE4 ΔE 0.041
- Soft Blue #6488EA ΔE 0.044
- Perrywinkle #8F8CE7 ΔE 0.060
- Faded Blue #658CBB ΔE 0.060
- Periwinkle Blue #8F99FB ΔE 0.067
- Dodger Blue #1E90FF ΔE 0.069
Use #6397E2 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.