#6398DA
Closest named color: Cornflower Blue (#6495ED). oklch(67.1% 0.114 254.6), rgb(99, 152, 218).
Aa
Black text reads best on this color (7.03:1).
About this color
#6398DA is a medium-light, moderately saturated blue. In OKLCH its lightness is 67%, its chroma 0.114 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.032 away. Black text reads best on it, at 7.03:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.114) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 7.03:1 |
| White text | 2.98:1 |
Values
| HEX | #6398DA |
| RGB | rgb(99, 152, 218) |
| HSL | hsl(213, 62%, 62%) |
| OKLCH | oklch(67.1% 0.114 254.6) |
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 #6398DA | 2.98:1 | Fails | Lc -61.7 | Content text, not long reading |
| Black text on #6398DA | 7.03:1 | AAA | Lc 47.7 | Large or bold text, headings |
| #6398DA text on white | 2.98:1 | Fails | Lc 56.3 | Large or bold text, headings |
| #6398DA text on black | 7.03:1 | AAA | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E1EBF8
oklch(93.6% 0.021 254.9)
-
Step 200
200
#C8DBF3
oklch(88.5% 0.039 254.3)
-
Step 300
300
#A2C4EE
oklch(81% 0.07 253.9)
-
Step 400
400 (this color)
#6398DA
oklch(67.1% 0.114 254.6)
-
Step 500
500
#458BDF
oklch(63.1% 0.145 254.5)
-
Step 600
600
#2373CD
oklch(55.6% 0.158 254.7)
-
Step 700
700
#1460B1
oklch(49.1% 0.147 254.5)
-
Step 800
800
#154F8F
oklch(42.8% 0.121 254.3)
-
Step 900
900
#194272
oklch(37.7% 0.094 254.4)
-
Step 950
950
#102743
oklch(27% 0.06 254.6)
#6398DA 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) | #7D9CDD | 0.033 |
| Deuteranopia (no green cones) | #6E90D9 | 0.023 |
| Tritanopia (no blue cones) | #14A7AF | 0.101 |
| Achromatopsia (no color) | #959595 | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6398DA
#6398DA
oklch(67.1% 0.114 254.6)
- #BE8A3C
#BE8A3C
oklch(67% 0.113 74.5)
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 #6398DA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.032
- Chefchaouen Blue #4895EF ΔE 0.041
- Dark Sky Blue #448EE4 ΔE 0.046
- Faded Blue #658CBB ΔE 0.050
- Soft Blue #6488EA ΔE 0.054
- Perrywinkle #8F8CE7 ΔE 0.066
- Greyblue #77A1B5 ΔE 0.071
- Silver Lake Blue #778DA9 ΔE 0.073
Use #6398DA 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.