#648DAE
Closest named color: Faded Blue (#658CBB). oklch(62.6% 0.067 243.4), rgb(100, 141, 174).
Aa
Black text reads best on this color (5.96:1).
About this color
#648DAE is a medium-light, muted blue. In OKLCH its lightness is 63%, its chroma 0.067 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.021 away. Black text reads best on it, at 5.96:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | muted (0.067) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 5.96:1 |
| White text | 3.52:1 |
Values
| HEX | #648DAE |
| RGB | rgb(100, 141, 174) |
| HSL | hsl(207, 31%, 54%) |
| OKLCH | oklch(62.6% 0.067 243.4) |
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 #648DAE | 3.52:1 | AA large text | Lc -68.2 | Content text, not long reading |
| Black text on #648DAE | 5.96:1 | AA | Lc 41.3 | Non-text elements, placeholder text |
| #648DAE text on white | 3.52:1 | AA large text | Lc 62.7 | Content text, not long reading |
| #648DAE text on black | 5.96:1 | AA | Lc -39.0 | 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
#AFC4D5
oklch(81% 0.033 242.4)
-
Step 400
400
#85A5C0
oklch(70.7% 0.053 244.1)
-
Step 500
500 (this color)
#648DAE
oklch(62.6% 0.067 243.4)
-
Step 600
600
#4C789B
oklch(55.5% 0.073 243.6)
-
Step 700
700
#3D6585
oklch(49.1% 0.069 244)
-
Step 800
800
#33536C
oklch(42.9% 0.056 243.2)
-
Step 900
900
#2D4457
oklch(37.6% 0.044 244.2)
-
Step 950
950
#1A2833
oklch(26.9% 0.028 242.7)
#648DAE 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) | #7F8DB0 | 0.034 |
| Deuteranopia (no green cones) | #7685AD | 0.029 |
| Tritanopia (no blue cones) | #479598 | 0.056 |
| Achromatopsia (no color) | #888888 | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #648DAE
#648DAE
oklch(62.6% 0.067 243.4)
- #A57F5D
#A57F5D
oklch(62.5% 0.067 62.9)
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 #648DAE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.021
- Silver Lake Blue #778DA9 ΔE 0.024
- Dusty Blue #5A86AD ΔE 0.024
- Blue Grey #758DA3 ΔE 0.025
- Off Blue #5684AE ΔE 0.032
- Light Slate Gray #778899 ΔE 0.036
- Steel #738595 ΔE 0.040
- Cool Blue #4984B8 ΔE 0.045
Use #648DAE 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.