#659ACF
Closest named color: Faded Blue (#658CBB). oklch(67.1% 0.097 249.5), rgb(101, 154, 207).
Aa
Black text reads best on this color (7.07:1).
About this color
#659ACF is a medium-light, moderately saturated blue. In OKLCH its lightness is 67%, its chroma 0.097 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.043 away. Black text reads best on it, at 7.07:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.097) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 7.07:1 |
| White text | 2.96:1 |
Values
| HEX | #659ACF |
| RGB | rgb(101, 154, 207) |
| HSL | hsl(210, 52%, 60%) |
| OKLCH | oklch(67.1% 0.097 249.5) |
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 #659ACF | 2.96:1 | Fails | Lc -61.5 | Content text, not long reading |
| Black text on #659ACF | 7.07:1 | AAA | Lc 47.9 | Large or bold text, headings |
| #659ACF text on white | 2.96:1 | Fails | Lc 56.1 | Large or bold text, headings |
| #659ACF text on black | 7.07:1 | AAA | Lc -45.7 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E1EBF5
oklch(93.5% 0.017 248)
-
Step 200
200
#C9DBEF
oklch(88.4% 0.034 251)
-
Step 300
300
#A3C4E7
oklch(80.8% 0.061 250.1)
-
Step 400
400 (this color)
#659ACF
oklch(67.1% 0.097 249.5)
-
Step 500
500
#478ED1
oklch(63.1% 0.124 249.2)
-
Step 600
600
#2577BE
oklch(55.7% 0.134 249.2)
-
Step 700
700
#1663A4
oklch(49% 0.126 249.6)
-
Step 800
800
#165185
oklch(42.6% 0.105 249.7)
-
Step 900
900
#1A446B
oklch(37.8% 0.082 249.5)
-
Step 950
950
#11283E
oklch(27% 0.05 249.3)
#659ACF 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) | #849CD1 | 0.037 |
| Deuteranopia (no green cones) | #7791CE | 0.030 |
| Tritanopia (no blue cones) | #2EA6AC | 0.084 |
| Achromatopsia (no color) | #969696 | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #659ACF
#659ACF
oklch(67.1% 0.097 249.5)
- #BC8A50
#BC8A50
oklch(67% 0.097 69)
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 #659ACF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.043
- Cornflower Blue #6495ED ΔE 0.050
- Greyblue #77A1B5 ΔE 0.052
- Chefchaouen Blue #4895EF ΔE 0.058
- Silver Lake Blue #778DA9 ΔE 0.059
- Dark Sky Blue #448EE4 ΔE 0.061
- Cool Gray #8D99AE ΔE 0.065
- Blue Grey #758DA3 ΔE 0.066
Use #659ACF 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.