#649BD5
Closest named color: Cornflower Blue (#6495ED). oklch(67.5% 0.104 250.8), rgb(100, 155, 213).
Aa
Black text reads best on this color (7.19:1).
About this color
#649BD5 is a medium-light, moderately saturated blue. In OKLCH its lightness is 68%, its chroma 0.104 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.043 away. Black text reads best on it, at 7.19:1.
| Hue family | Blues |
| Lightness | medium-light (68%) |
| Chroma | moderately saturated (0.104) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 7.19:1 |
| White text | 2.92:1 |
Values
| HEX | #649BD5 |
| RGB | rgb(100, 155, 213) |
| HSL | hsl(211, 57%, 61%) |
| OKLCH | oklch(67.5% 0.104 250.8) |
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 #649BD5 | 2.92:1 | Fails | Lc -60.8 | Content text, not long reading |
| Black text on #649BD5 | 7.19:1 | AAA | Lc 48.6 | Large or bold text, headings |
| #649BD5 text on white | 2.92:1 | Fails | Lc 55.5 | Large or bold text, headings |
| #649BD5 text on black | 7.19:1 | AAA | Lc -46.3 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E1EBF6
oklch(93.6% 0.018 250.6)
-
Step 200
200
#C8DBF1
oklch(88.4% 0.037 252.1)
-
Step 300
300
#A2C4EA
oklch(80.9% 0.065 251.5)
-
Step 400
400 (this color)
#649BD5
oklch(67.5% 0.104 250.8)
-
Step 500
500
#448DD7
oklch(63.1% 0.134 251)
-
Step 600
600
#1F76C4
oklch(55.7% 0.144 250.6)
-
Step 700
700
#0F62A9
oklch(49% 0.135 250.9)
-
Step 800
800
#125189
oklch(42.8% 0.111 250.5)
-
Step 900
900
#18436E
oklch(37.6% 0.088 251.3)
-
Step 950
950
#0F2840
oklch(27% 0.055 249.7)
#649BD5 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) | #839DD8 | 0.037 |
| Deuteranopia (no green cones) | #7592D4 | 0.029 |
| Tritanopia (no blue cones) | #22A8AF | 0.090 |
| Achromatopsia (no color) | #979797 | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #649BD5
#649BD5
oklch(67.5% 0.104 250.8)
- #BF8B49
#BF8B49
oklch(67.4% 0.105 70.9)
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 #649BD5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.043
- Faded Blue #658CBB ΔE 0.050
- Chefchaouen Blue #4895EF ΔE 0.052
- Dark Sky Blue #448EE4 ΔE 0.057
- Greyblue #77A1B5 ΔE 0.059
- Soft Blue #6488EA ΔE 0.066
- Silver Lake Blue #778DA9 ΔE 0.068
- Cool Gray #8D99AE ΔE 0.071
Use #649BD5 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.