#6597D2
Closest named color: Faded Blue (#658CBB). oklch(66.5% 0.104 253.3), rgb(101, 151, 210).
Aa
Black text reads best on this color (6.91:1).
About this color
#6597D2 is a medium-light, moderately saturated blue. In OKLCH its lightness is 67%, its chroma 0.104 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.041 away. Black text reads best on it, at 6.91:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.104) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 6.91:1 |
| White text | 3.03:1 |
Values
| HEX | #6597D2 |
| RGB | rgb(101, 151, 210) |
| HSL | hsl(212, 55%, 61%) |
| OKLCH | oklch(66.5% 0.104 253.3) |
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 #6597D2 | 3.03:1 | AA large text | Lc -62.4 | Content text, not long reading |
| Black text on #6597D2 | 6.91:1 | AA | Lc 47.0 | Large or bold text, headings |
| #6597D2 text on white | 3.03:1 | AA large text | Lc 57.1 | Large or bold text, headings |
| #6597D2 text on black | 6.91:1 | AA | Lc -44.7 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EBF4
oklch(93.7% 0.015 251.2)
-
Step 200
200
#CDDBEC
oklch(88.6% 0.028 253.2)
-
Step 300
300
#AAC3E1
oklch(80.8% 0.051 253.1)
-
Step 400
400
#7DA4D2
oklch(70.8% 0.08 253)
-
Step 500
500 (this color)
#6597D2
oklch(66.5% 0.104 253.3)
-
Step 600
600
#4076B3
oklch(55.7% 0.112 252.9)
-
Step 700
700
#31629A
oklch(49% 0.105 253.4)
-
Step 800
800
#2A517D
oklch(42.8% 0.086 252.9)
-
Step 900
900
#264365
oklch(37.7% 0.068 253.4)
-
Step 950
950
#17273B
oklch(26.9% 0.043 254.6)
#6597D2 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) | #7F9AD5 | 0.033 |
| Deuteranopia (no green cones) | #728FD1 | 0.024 |
| Tritanopia (no blue cones) | #2BA4AC | 0.090 |
| Achromatopsia (no color) | #949494 | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6597D2
#6597D2
oklch(66.5% 0.104 253.3)
- #BA8946
#BA8946
oklch(66.4% 0.103 72.9)
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 #6597D2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.041
- Cornflower Blue #6495ED ΔE 0.042
- Chefchaouen Blue #4895EF ΔE 0.051
- Dark Sky Blue #448EE4 ΔE 0.052
- Soft Blue #6488EA ΔE 0.060
- Silver Lake Blue #778DA9 ΔE 0.062
- Greyblue #77A1B5 ΔE 0.062
- Dusty Blue #5A86AD ΔE 0.068
Use #6597D2 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.