#6598C4
Closest named color: Faded Blue (#658CBB). oklch(66.1% 0.086 245.6), rgb(101, 152, 196).
Aa
Black text reads best on this color (6.84:1).
About this color
#6598C4 is a medium-light, moderately saturated blue. In OKLCH its lightness is 66%, its chroma 0.086 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.033 away. Black text reads best on it, at 6.84:1.
| Hue family | Blues |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.086) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 6.84:1 |
| White text | 3.06:1 |
Values
| HEX | #6598C4 |
| RGB | rgb(101, 152, 196) |
| HSL | hsl(208, 45%, 58%) |
| OKLCH | oklch(66.1% 0.086 245.6) |
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 #6598C4 | 3.06:1 | AA large text | Lc -62.9 | Content text, not long reading |
| Black text on #6598C4 | 6.84:1 | AA | Lc 46.6 | Large or bold text, headings |
| #6598C4 text on white | 3.06:1 | AA large text | Lc 57.5 | Large or bold text, headings |
| #6598C4 text on black | 6.84:1 | AA | Lc -44.3 | 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
#E3EBF2
oklch(93.6% 0.013 244.3)
-
Step 200
200
#CDDBE8
oklch(88.5% 0.023 246.1)
-
Step 300
300
#ABC4DB
oklch(80.9% 0.042 246.1)
-
Step 400
400
#7EA5C8
oklch(70.6% 0.067 246)
-
Step 500
500 (this color)
#6598C4
oklch(66.1% 0.086 245.6)
-
Step 600
600
#4178A6
oklch(55.5% 0.093 245.8)
-
Step 700
700
#32658F
oklch(49.1% 0.087 245.7)
-
Step 800
800
#2B5374
oklch(42.9% 0.071 245.4)
-
Step 900
900
#27445D
oklch(37.6% 0.056 246)
-
Step 950
950
#172837
oklch(26.9% 0.036 246.3)
#6598C4 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) | #8699C6 | 0.040 |
| Deuteranopia (no green cones) | #798FC3 | 0.032 |
| Tritanopia (no blue cones) | #39A2A7 | 0.071 |
| Achromatopsia (no color) | #939393 | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6598C4
#6598C4
oklch(66.1% 0.086 245.6)
- #B78859
#B78859
oklch(66.2% 0.085 65.4)
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 #6598C4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.033
- Greyblue #77A1B5 ΔE 0.044
- Silver Lake Blue #778DA9 ΔE 0.045
- Blue Grey #758DA3 ΔE 0.051
- Cool Gray #8D99AE ΔE 0.057
- Dusty Blue #5A86AD ΔE 0.058
- Bluey Grey #89A0B0 ΔE 0.060
- Bluegrey #85A3B2 ΔE 0.061
Use #6598C4 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.