#648CAF
Closest named color: Faded Blue (#658CBB). oklch(62.4% 0.069 245.6), rgb(100, 140, 175).
Aa
Black text reads best on this color (5.91:1).
About this color
#648CAF is a medium-light, muted blue. In OKLCH its lightness is 62%, its chroma 0.069 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.019 away. Black text reads best on it, at 5.91:1.
| Hue family | Blues |
| Lightness | medium-light (62%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 5.91:1 |
| White text | 3.55:1 |
Values
| HEX | #648CAF |
| RGB | rgb(100, 140, 175) |
| HSL | hsl(208, 32%, 54%) |
| OKLCH | oklch(62.4% 0.069 245.6) |
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 #648CAF | 3.55:1 | AA large text | Lc -68.5 | Content text, not long reading |
| Black text on #648CAF | 5.91:1 | AA | Lc 41.0 | Non-text elements, placeholder text |
| #648CAF text on white | 3.55:1 | AA large text | Lc 63.0 | Content text, not long reading |
| #648CAF text on black | 5.91:1 | AA | Lc -38.6 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E5EBF0
oklch(93.7% 0.009 242.8)
-
Step 200
200
#CFDBE5
oklch(88.5% 0.019 243)
-
Step 300
300
#AFC3D6
oklch(80.8% 0.035 246.9)
-
Step 400
400
#85A5C1
oklch(70.8% 0.054 245.1)
-
Step 500
500 (this color)
#648CAF
oklch(62.4% 0.069 245.6)
-
Step 600
600
#4D789D
oklch(55.7% 0.075 245.7)
-
Step 700
700
#3D6586
oklch(49.2% 0.07 244.8)
-
Step 800
800
#33526D
oklch(42.7% 0.058 246)
-
Step 900
900
#2D4458
oklch(37.7% 0.045 245.6)
-
Step 950
950
#1B2834
oklch(27.1% 0.029 246.9)
#648CAF 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) | #7E8CB1 | 0.033 |
| Deuteranopia (no green cones) | #7484AE | 0.028 |
| Tritanopia (no blue cones) | #479498 | 0.057 |
| Achromatopsia (no color) | #888888 | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #648CAF
#648CAF
oklch(62.4% 0.069 245.6)
- #A57F5A
#A57F5A
oklch(62.4% 0.07 65.2)
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 #648CAF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.019
- Dusty Blue #5A86AD ΔE 0.022
- Silver Lake Blue #778DA9 ΔE 0.025
- Blue Grey #758DA3 ΔE 0.027
- Off Blue #5684AE ΔE 0.030
- Light Slate Gray #778899 ΔE 0.037
- Steel #738595 ΔE 0.041
- Cool Blue #4984B8 ΔE 0.043
Use #648CAF 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.