#6593DE
Closest named color: Cornflower Blue (#6495ED). oklch(66.3% 0.123 259.8), rgb(101, 147, 222).
Aa
Black text reads best on this color (6.78:1).
About this color
#6593DE is a medium-light, moderately saturated blue. In OKLCH its lightness is 66%, its chroma 0.123 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.022 away. Black text reads best on it, at 6.78:1.
| Hue family | Blues |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.123) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 6.78:1 |
| White text | 3.09:1 |
Values
| HEX | #6593DE |
| RGB | rgb(101, 147, 222) |
| HSL | hsl(217, 65%, 63%) |
| OKLCH | oklch(66.3% 0.123 259.8) |
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 #6593DE | 3.09:1 | AA large text | Lc -63.2 | Content text, not long reading |
| Black text on #6593DE | 6.78:1 | AA | Lc 46.3 | Large or bold text, headings |
| #6593DE text on white | 3.09:1 | AA large text | Lc 57.8 | Large or bold text, headings |
| #6593DE text on black | 6.78:1 | AA | Lc -44.0 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E3EAF6
oklch(93.5% 0.018 261.3)
-
Step 200
200
#CCDAF0
oklch(88.5% 0.034 259.4)
-
Step 300
300
#AAC2E8
oklch(80.9% 0.06 259.5)
-
Step 400
400
#7DA2DD
oklch(70.8% 0.096 259.5)
-
Step 500
500 (this color)
#6593DE
oklch(66.3% 0.123 259.8)
-
Step 600
600
#4272C1
oklch(55.7% 0.134 259.8)
-
Step 700
700
#335FA6
oklch(49.1% 0.124 259.5)
-
Step 800
800
#2B4E87
oklch(42.8% 0.103 259.7)
-
Step 900
900
#27416C
oklch(37.7% 0.081 260)
-
Step 950
950
#17263F
oklch(26.9% 0.051 260.2)
#6593DE 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) | #7599E1 | 0.026 |
| Deuteranopia (no green cones) | #668DDC | 0.016 |
| Tritanopia (no blue cones) | #1AA4AE | 0.111 |
| Achromatopsia (no color) | #929292 | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6593DE
#6593DE
oklch(66.3% 0.123 259.8)
- #BA8929
#BA8929
oklch(66.2% 0.123 79.7)
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 #6593DE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.022
- Chefchaouen Blue #4895EF ΔE 0.034
- Dark Sky Blue #448EE4 ΔE 0.037
- Soft Blue #6488EA ΔE 0.038
- Faded Blue #658CBB ΔE 0.052
- Perrywinkle #8F8CE7 ΔE 0.057
- Lavender Blue #8B88F8 ΔE 0.070
- Dodger Blue #1E90FF ΔE 0.070
Use #6593DE 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.