#649BD9
Closest named color: Cornflower Blue (#6495ED). oklch(67.7% 0.109 252.4), rgb(100, 155, 217).
Aa
Black text reads best on this color (7.23:1).
About this color
#649BD9 is a medium-light, moderately saturated blue. In OKLCH its lightness is 68%, its chroma 0.109 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.038 away. Black text reads best on it, at 7.23:1.
| Hue family | Blues |
| Lightness | medium-light (68%) |
| Chroma | moderately saturated (0.109) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 7.23:1 |
| White text | 2.90:1 |
Values
| HEX | #649BD9 |
| RGB | rgb(100, 155, 217) |
| HSL | hsl(212, 61%, 62%) |
| OKLCH | oklch(67.7% 0.109 252.4) |
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 #649BD9 | 2.90:1 | Fails | Lc -60.5 | Content text, not long reading |
| Black text on #649BD9 | 7.23:1 | AAA | Lc 48.8 | Large or bold text, headings |
| #649BD9 text on white | 2.90:1 | Fails | Lc 55.2 | Large or bold text, headings |
| #649BD9 text on black | 7.23:1 | AAA | Lc -46.6 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E1EBF7
oklch(93.6% 0.019 252.9)
-
Step 200
200
#C8DBF2
oklch(88.4% 0.038 253.2)
-
Step 300
300
#A1C4EC
oklch(80.9% 0.068 252)
-
Step 400
400 (this color)
#649BD9
oklch(67.7% 0.109 252.4)
-
Step 500
500
#438CDB
oklch(63.1% 0.14 252.5)
-
Step 600
600
#1E75C9
oklch(55.7% 0.152 252.2)
-
Step 700
700
#0F61AD
oklch(49% 0.141 252.5)
-
Step 800
800
#12508C
oklch(42.7% 0.116 252.2)
-
Step 900
900
#174370
oklch(37.7% 0.091 252)
-
Step 950
950
#0F2742
oklch(26.9% 0.059 253.1)
#649BD9 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) | #829EDC | 0.036 |
| Deuteranopia (no green cones) | #7392D8 | 0.027 |
| Tritanopia (no blue cones) | #1BA9B1 | 0.095 |
| Achromatopsia (no color) | #979797 | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #649BD9
#649BD9
oklch(67.7% 0.109 252.4)
- #C18C44
#C18C44
oklch(67.8% 0.11 72.4)
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 #649BD9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.038
- Chefchaouen Blue #4895EF ΔE 0.047
- Faded Blue #658CBB ΔE 0.054
- Dark Sky Blue #448EE4 ΔE 0.054
- Soft Blue #6488EA ΔE 0.062
- Greyblue #77A1B5 ΔE 0.064
- Perrywinkle #8F8CE7 ΔE 0.069
- Silver Lake Blue #778DA9 ΔE 0.073
Use #649BD9 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.