#659BF5
Closest named color: Cornflower Blue (#6495ED). oklch(69.2% 0.145 260.1), rgb(101, 155, 245).
Aa
Black text reads best on this color (7.56:1).
About this color
#659BF5 is a medium-light, vivid blue. In OKLCH its lightness is 69%, its chroma 0.145 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.018 away. Black text reads best on it, at 7.56:1.
| Hue family | Blues |
| Lightness | medium-light (69%) |
| Chroma | vivid (0.145) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 7.56:1 |
| White text | 2.77:1 |
Values
| HEX | #659BF5 |
| RGB | rgb(101, 155, 245) |
| HSL | hsl(218, 88%, 68%) |
| OKLCH | oklch(69.2% 0.145 260.1) |
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 #659BF5 | 2.77:1 | Fails | Lc -58.6 | Large or bold text, headings |
| Black text on #659BF5 | 7.56:1 | AAA | Lc 50.7 | Large or bold text, headings |
| #659BF5 text on white | 2.77:1 | Fails | Lc 53.3 | Large or bold text, headings |
| #659BF5 text on black | 7.56:1 | AAA | Lc -48.5 | 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
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E0EBFC
oklch(93.7% 0.026 259)
-
Step 200
200
#C6DAFB
oklch(88.4% 0.051 260.4)
-
Step 300
300
#9FC2FC
oklch(81% 0.091 260.4)
-
Step 400
400 (this color)
#659BF5
oklch(69.2% 0.145 260.1)
-
Step 500
500
#4085F7
oklch(63.2% 0.184 259.9)
-
Step 600
600
#1E6BE6
oklch(55.6% 0.201 260)
-
Step 700
700
#1058C8
oklch(49.1% 0.187 260.1)
-
Step 800
800
#1149A2
oklch(42.8% 0.155 260)
-
Step 900
900
#163E80
oklch(37.7% 0.12 260)
-
Step 950
950
#0E254B
oklch(27% 0.076 259.9)
#659BF5 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) | #75A2F9 | 0.027 |
| Deuteranopia (no green cones) | #6295F3 | 0.016 |
| Tritanopia (no blue cones) | #00AFBC | 0.126 |
| Achromatopsia (no color) | #9B9B9B | 0.145 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #659BF5
#659BF5
oklch(69.2% 0.145 260.1)
- #CA9000
#CA9000
oklch(69.2% 0.143 79.9)
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 #659BF5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.018
- Chefchaouen Blue #4895EF ΔE 0.034
- Soft Blue #6488EA ΔE 0.050
- Periwinkle Blue #8F99FB ΔE 0.050
- Dark Sky Blue #448EE4 ΔE 0.054
- Perrywinkle #8F8CE7 ΔE 0.059
- Lavender Blue #8B88F8 ΔE 0.063
- Dodger Blue #1E90FF ΔE 0.064
Use #659BF5 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.