#6593DC
Closest named color: Cornflower Blue (#6495ED). oklch(66.2% 0.12 259.3), rgb(101, 147, 220).
Aa
Black text reads best on this color (6.76:1).
About this color
#6593DC is a medium-light, moderately saturated blue. In OKLCH its lightness is 66%, its chroma 0.120 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.025 away. Black text reads best on it, at 6.76:1.
| Hue family | Blues |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.120) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 6.76:1 |
| White text | 3.10:1 |
Values
| HEX | #6593DC |
| RGB | rgb(101, 147, 220) |
| HSL | hsl(217, 63%, 63%) |
| OKLCH | oklch(66.2% 0.12 259.3) |
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 #6593DC | 3.10:1 | AA large text | Lc -63.3 | Content text, not long reading |
| Black text on #6593DC | 6.76:1 | AA | Lc 46.2 | Large or bold text, headings |
| #6593DC text on white | 3.10:1 | AA large text | Lc 57.9 | Large or bold text, headings |
| #6593DC text on black | 6.76:1 | AA | Lc -43.8 | 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
#CDDAEF
oklch(88.5% 0.032 260)
-
Step 300
300
#AAC2E7
oklch(80.9% 0.059 259)
-
Step 400
400
#7DA2DB
oklch(70.7% 0.093 258.8)
-
Step 500
500 (this color)
#6593DC
oklch(66.2% 0.12 259.3)
-
Step 600
600
#4272BF
oklch(55.6% 0.131 259.4)
-
Step 700
700
#345FA5
oklch(49.1% 0.122 259.7)
-
Step 800
800
#2B4E85
oklch(42.6% 0.1 259.1)
-
Step 900
900
#27416B
oklch(37.6% 0.079 259.6)
-
Step 950
950
#17263F
oklch(26.9% 0.051 260.2)
#6593DC 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) | #7698DF | 0.025 |
| Deuteranopia (no green cones) | #678DDA | 0.016 |
| Tritanopia (no blue cones) | #1EA3AD | 0.108 |
| Achromatopsia (no color) | #929292 | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6593DC
#6593DC
oklch(66.2% 0.12 259.3)
- #BA892D
#BA892D
oklch(66.2% 0.121 79.1)
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 #6593DC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.025
- Chefchaouen Blue #4895EF ΔE 0.036
- Dark Sky Blue #448EE4 ΔE 0.038
- Soft Blue #6488EA ΔE 0.040
- Faded Blue #658CBB ΔE 0.050
- Perrywinkle #8F8CE7 ΔE 0.058
- Lavender Blue #8B88F8 ΔE 0.072
- Dodger Blue #1E90FF ΔE 0.072
Use #6593DC 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.