#6490CD
Closest named color: Faded Blue (#658CBB). oklch(64.7% 0.104 256.7), rgb(100, 144, 205).
Aa
Black text reads best on this color (6.41:1).
About this color
#6490CD is a medium-light, moderately saturated blue. In OKLCH its lightness is 65%, its chroma 0.104 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.027 away. Black text reads best on it, at 6.41:1.
| Hue family | Blues |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.104) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 6.41:1 |
| White text | 3.27:1 |
Values
| HEX | #6490CD |
| RGB | rgb(100, 144, 205) |
| HSL | hsl(215, 51%, 60%) |
| OKLCH | oklch(64.7% 0.104 256.7) |
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 #6490CD | 3.27:1 | AA large text | Lc -65.4 | Content text, not long reading |
| Black text on #6490CD | 6.41:1 | AA | Lc 44.1 | Non-text elements, placeholder text |
| #6490CD text on white | 3.27:1 | AA large text | Lc 60.0 | Large or bold text, headings |
| #6490CD text on black | 6.41:1 | AA | Lc -41.8 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E4EAF4
oklch(93.5% 0.015 260.7)
-
Step 200
200
#CDDAEC
oklch(88.4% 0.029 256.5)
-
Step 300
300
#ACC2E2
oklch(80.8% 0.051 257.7)
-
Step 400
400
#80A3D3
oklch(70.8% 0.081 256.4)
-
Step 500
500 (this color)
#6490CD
oklch(64.7% 0.104 256.7)
-
Step 600
600
#4574B4
oklch(55.5% 0.113 256.5)
-
Step 700
700
#37619B
oklch(49.1% 0.105 256.8)
-
Step 800
800
#2E507E
oklch(42.8% 0.087 256.4)
-
Step 900
900
#294265
oklch(37.6% 0.068 257)
-
Step 950
950
#18273B
oklch(27% 0.043 255.9)
#6490CD 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) | #7894D0 | 0.028 |
| Deuteranopia (no green cones) | #6B8ACC | 0.017 |
| Tritanopia (no blue cones) | #309EA6 | 0.092 |
| Achromatopsia (no color) | #8E8E8E | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6490CD
#6490CD
oklch(64.7% 0.104 256.7)
- #B2853E
#B2853E
oklch(64.7% 0.104 76.4)
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 #6490CD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.027
- Dark Sky Blue #448EE4 ΔE 0.046
- Cornflower Blue #6495ED ΔE 0.047
- Soft Blue #6488EA ΔE 0.053
- Chefchaouen Blue #4895EF ΔE 0.053
- Dusty Blue #5A86AD ΔE 0.054
- Cool Blue #4984B8 ΔE 0.054
- Silver Lake Blue #778DA9 ΔE 0.056
Use #6490CD 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.