#6488CC
Closest named color: Faded Blue (#658CBB). oklch(62.9% 0.111 262.4), rgb(100, 136, 204).
Aa
Black text reads best on this color (5.93:1).
About this color
#6488CC is a medium-light, moderately saturated blue. In OKLCH its lightness is 63%, its chroma 0.111 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.031 away. Black text reads best on it, at 5.93:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.111) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 5.93:1 |
| White text | 3.53:1 |
Values
| HEX | #6488CC |
| RGB | rgb(100, 136, 204) |
| HSL | hsl(219, 50%, 60%) |
| OKLCH | oklch(62.9% 0.111 262.4) |
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 #6488CC | 3.53:1 | AA large text | Lc -68.3 | Content text, not long reading |
| Black text on #6488CC | 5.93:1 | AA | Lc 41.2 | Non-text elements, placeholder text |
| #6488CC text on white | 3.53:1 | AA large text | Lc 62.8 | Content text, not long reading |
| #6488CC text on black | 5.93:1 | AA | Lc -38.8 | 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
#E4EAF5
oklch(93.6% 0.016 262.8)
-
Step 200
200
#CFDAEE
oklch(88.6% 0.03 262.5)
-
Step 300
300
#AEC1E5
oklch(80.9% 0.055 263.2)
-
Step 400
400
#83A1D7
oklch(70.7% 0.086 261.9)
-
Step 500
500 (this color)
#6488CC
oklch(62.9% 0.111 262.4)
-
Step 600
600
#4C71B9
oklch(55.5% 0.12 262.6)
-
Step 700
700
#3D5FA0
oklch(49.2% 0.112 262.2)
-
Step 800
800
#324D82
oklch(42.6% 0.094 262.7)
-
Step 900
900
#2C4168
oklch(37.7% 0.072 262)
-
Step 950
950
#1A263D
oklch(27% 0.046 262.7)
#6488CC 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) | #6E8DCF | 0.019 |
| Deuteranopia (no green cones) | #6284CB | 0.011 |
| Tritanopia (no blue cones) | #3397A1 | 0.099 |
| Achromatopsia (no color) | #888888 | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6488CC
#6488CC
oklch(62.9% 0.111 262.4)
- #AA822D
#AA822D
oklch(63% 0.111 82.6)
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 #6488CC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.031
- Dark Sky Blue #448EE4 ΔE 0.044
- Cool Blue #4984B8 ΔE 0.045
- Soft Blue #6488EA ΔE 0.046
- Dusty Blue #5A86AD ΔE 0.050
- Off Blue #5684AE ΔE 0.050
- Steel Blue #4682B4 ΔE 0.052
- Cornflower Blue #6495ED ΔE 0.055
Use #6488CC 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.