#659EEA
Closest named color: Cornflower Blue (#6495ED). oklch(69.3% 0.128 256), rgb(101, 158, 234).
Aa
Black text reads best on this color (7.63:1).
About this color
#659EEA is a medium-light, moderately saturated blue. In OKLCH its lightness is 69%, its chroma 0.128 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.026 away. Black text reads best on it, at 7.63:1.
| Hue family | Blues |
| Lightness | medium-light (69%) |
| Chroma | moderately saturated (0.128) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 7.63:1 |
| White text | 2.75:1 |
Values
| HEX | #659EEA |
| RGB | rgb(101, 158, 234) |
| HSL | hsl(214, 76%, 66%) |
| OKLCH | oklch(69.3% 0.128 256) |
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 #659EEA | 2.75:1 | Fails | Lc -58.2 | Large or bold text, headings |
| Black text on #659EEA | 7.63:1 | AAA | Lc 51.0 | Large or bold text, headings |
| #659EEA text on white | 2.75:1 | Fails | Lc 53.0 | Large or bold text, headings |
| #659EEA text on black | 7.63:1 | AAA | Lc -48.9 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E0EBFA
oklch(93.6% 0.024 256.1)
-
Step 200
200
#C7DBF7
oklch(88.5% 0.044 256.8)
-
Step 300
300
#9FC3F4
oklch(80.8% 0.08 256.2)
-
Step 400
400 (this color)
#659EEA
oklch(69.3% 0.128 256)
-
Step 500
500
#3E89EA
oklch(63.1% 0.164 256.2)
-
Step 600
600
#1770D8
oklch(55.5% 0.178 256.2)
-
Step 700
700
#055DBB
oklch(49% 0.165 256.2)
-
Step 800
800
#0C4D97
oklch(42.7% 0.136 255.9)
-
Step 900
900
#144178
oklch(37.7% 0.106 255.7)
-
Step 950
950
#0E2647
oklch(27% 0.068 257.1)
#659EEA 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) | #7FA3ED | 0.033 |
| Deuteranopia (no green cones) | #6E96E8 | 0.022 |
| Tritanopia (no blue cones) | #00AFB9 | 0.112 |
| Achromatopsia (no color) | #9C9C9C | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #659EEA
#659EEA
oklch(69.3% 0.128 256)
- #C99030
#C99030
oklch(69.3% 0.128 76.1)
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 #659EEA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.026
- Chefchaouen Blue #4895EF ΔE 0.040
- Dark Sky Blue #448EE4 ΔE 0.057
- Periwinkle Blue #8F99FB ΔE 0.058
- Soft Blue #6488EA ΔE 0.059
- Perrywinkle #8F8CE7 ΔE 0.064
- Dodger Blue #1E90FF ΔE 0.075
- Lavender Blue #8B88F8 ΔE 0.075
Use #659EEA 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.