#659BCC
Closest named color: Faded Blue (#658CBB). oklch(67.2% 0.093 247), rgb(101, 155, 204).
Aa
Black text reads best on this color (7.11:1).
About this color
#659BCC is a medium-light, moderately saturated blue. In OKLCH its lightness is 67%, its chroma 0.093 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.044 away. Black text reads best on it, at 7.11:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.093) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 7.11:1 |
| White text | 2.95:1 |
Values
| HEX | #659BCC |
| RGB | rgb(101, 155, 204) |
| HSL | hsl(209, 50%, 60%) |
| OKLCH | oklch(67.2% 0.093 247) |
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 #659BCC | 2.95:1 | Fails | Lc -61.3 | Content text, not long reading |
| Black text on #659BCC | 7.11:1 | AAA | Lc 48.1 | Large or bold text, headings |
| #659BCC text on white | 2.95:1 | Fails | Lc 55.9 | Large or bold text, headings |
| #659BCC text on black | 7.11:1 | AAA | Lc -45.9 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1EBF5
oklch(93.5% 0.017 248)
-
Step 200
200
#C9DCEE
oklch(88.6% 0.032 246.7)
-
Step 300
300
#A3C5E5
oklch(80.9% 0.058 247)
-
Step 400
400 (this color)
#659BCC
oklch(67.2% 0.093 247)
-
Step 500
500
#478FCD
oklch(63.1% 0.118 247)
-
Step 600
600
#2378BA
oklch(55.6% 0.129 246.9)
-
Step 700
700
#1465A0
oklch(49.2% 0.119 246.6)
-
Step 800
800
#155282
oklch(42.6% 0.1 247.3)
-
Step 900
900
#1A4468
oklch(37.6% 0.077 247.6)
-
Step 950
950
#10283D
oklch(26.9% 0.05 247.3)
#659BCC 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) | #879CCE | 0.041 |
| Deuteranopia (no green cones) | #7992CB | 0.031 |
| Tritanopia (no blue cones) | #31A7AC | 0.079 |
| Achromatopsia (no color) | #969696 | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #659BCC
#659BCC
oklch(67.2% 0.093 247)
- #BC8A55
#BC8A55
oklch(67.1% 0.093 66.7)
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 #659BCC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.044
- Greyblue #77A1B5 ΔE 0.047
- Cornflower Blue #6495ED ΔE 0.056
- Silver Lake Blue #778DA9 ΔE 0.057
- Cool Gray #8D99AE ΔE 0.061
- Bluegrey #85A3B2 ΔE 0.062
- Bluey Grey #89A0B0 ΔE 0.063
- Blue Grey #758DA3 ΔE 0.063
Use #659BCC 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.