#6597C2
Closest named color: Faded Blue (#658CBB). oklch(65.8% 0.084 245.5), rgb(101, 151, 194).
Aa
Black text reads best on this color (6.75:1).
About this color
#6597C2 is a medium-light, moderately saturated blue. In OKLCH its lightness is 66%, its chroma 0.084 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.030 away. Black text reads best on it, at 6.75:1.
| Hue family | Blues |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.084) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 6.75:1 |
| White text | 3.10:1 |
Values
| HEX | #6597C2 |
| RGB | rgb(101, 151, 194) |
| HSL | hsl(208, 43%, 58%) |
| OKLCH | oklch(65.8% 0.084 245.5) |
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 #6597C2 | 3.10:1 | AA large text | Lc -63.4 | Content text, not long reading |
| Black text on #6597C2 | 6.75:1 | AA | Lc 46.1 | Large or bold text, headings |
| #6597C2 text on white | 3.10:1 | AA large text | Lc 58.0 | Large or bold text, headings |
| #6597C2 text on black | 6.75:1 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E4EBF1
oklch(93.6% 0.011 243.7)
-
Step 200
200
#CDDBE8
oklch(88.5% 0.023 246.1)
-
Step 300
300
#ABC4DA
oklch(80.9% 0.041 244.9)
-
Step 400
400
#7FA5C7
oklch(70.6% 0.065 245.9)
-
Step 500
500 (this color)
#6597C2
oklch(65.8% 0.084 245.5)
-
Step 600
600
#4278A5
oklch(55.5% 0.091 245.6)
-
Step 700
700
#33658E
oklch(49.1% 0.085 245.5)
-
Step 800
800
#2B5373
oklch(42.8% 0.07 244.6)
-
Step 900
900
#28445D
oklch(37.6% 0.055 246.8)
-
Step 950
950
#182836
oklch(27% 0.034 245.9)
#6597C2 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) | #8598C4 | 0.039 |
| Deuteranopia (no green cones) | #798EC1 | 0.032 |
| Tritanopia (no blue cones) | #3BA1A5 | 0.071 |
| Achromatopsia (no color) | #929292 | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6597C2
#6597C2
oklch(65.8% 0.084 245.5)
- #B58759
#B58759
oklch(65.8% 0.084 65.5)
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 #6597C2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.030
- Silver Lake Blue #778DA9 ΔE 0.042
- Greyblue #77A1B5 ΔE 0.045
- Blue Grey #758DA3 ΔE 0.048
- Dusty Blue #5A86AD ΔE 0.055
- Cool Gray #8D99AE ΔE 0.057
- Off Blue #5684AE ΔE 0.061
- Bluey Grey #89A0B0 ΔE 0.061
Use #6597C2 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.