#649CEB
Closest named color: Cornflower Blue (#6495ED). oklch(68.8% 0.131 257.1), rgb(100, 156, 235).
Aa
Black text reads best on this color (7.49:1).
About this color
#649CEB is a medium-light, moderately saturated blue. In OKLCH its lightness is 69%, its chroma 0.131 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.020 away. Black text reads best on it, at 7.49:1.
| Hue family | Blues |
| Lightness | medium-light (69%) |
| Chroma | moderately saturated (0.131) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 7.49:1 |
| White text | 2.80:1 |
Values
| HEX | #649CEB |
| RGB | rgb(100, 156, 235) |
| HSL | hsl(215, 77%, 66%) |
| OKLCH | oklch(68.8% 0.131 257.1) |
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 #649CEB | 2.80:1 | Fails | Lc -59.0 | Large or bold text, headings |
| Black text on #649CEB | 7.49:1 | AAA | Lc 50.3 | Large or bold text, headings |
| #649CEB text on white | 2.80:1 | Fails | Lc 53.7 | Large or bold text, headings |
| #649CEB text on black | 7.49:1 | AAA | Lc -48.1 | 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
#E0EBFA
oklch(93.6% 0.024 256.1)
-
Step 200
200
#C6DBF8
oklch(88.5% 0.046 256.5)
-
Step 300
300
#9FC3F6
oklch(80.9% 0.082 257.1)
-
Step 400
400 (this color)
#649CEB
oklch(68.8% 0.131 257.1)
-
Step 500
500
#3F88ED
oklch(63.1% 0.169 257.3)
-
Step 600
600
#196FDB
oklch(55.6% 0.183 257.2)
-
Step 700
700
#095CBE
oklch(49% 0.17 257.3)
-
Step 800
800
#0E4C9A
oklch(42.7% 0.141 257.2)
-
Step 900
900
#15407A
oklch(37.6% 0.109 257.2)
-
Step 950
950
#0E2648
oklch(27% 0.07 257.6)
#649CEB 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) | #7BA1EE | 0.030 |
| Deuteranopia (no green cones) | #6A95E9 | 0.018 |
| Tritanopia (no blue cones) | #00AEB9 | 0.114 |
| Achromatopsia (no color) | #9A9A9A | 0.131 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #649CEB
#649CEB
oklch(68.8% 0.131 257.1)
- #C88F27
#C88F27
oklch(68.9% 0.132 77.3)
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 #649CEB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.020
- Chefchaouen Blue #4895EF ΔE 0.035
- Dark Sky Blue #448EE4 ΔE 0.052
- Soft Blue #6488EA ΔE 0.053
- Periwinkle Blue #8F99FB ΔE 0.057
- Perrywinkle #8F8CE7 ΔE 0.061
- Dodger Blue #1E90FF ΔE 0.070
- Lavender Blue #8B88F8 ΔE 0.071
Use #649CEB 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.