#5597CC
Closest named color: Faded Blue (#658CBB). oklch(65.5% 0.104 244.6), rgb(85, 151, 204).
Aa
Black text reads best on this color (6.68:1).
About this color
#5597CC is a medium-light, moderately saturated blue. In OKLCH its lightness is 65%, its chroma 0.104 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.035 away. Black text reads best on it, at 6.68:1.
| Hue family | Blues |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.104) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 6.68:1 |
| White text | 3.14:1 |
Values
| HEX | #5597CC |
| RGB | rgb(85, 151, 204) |
| HSL | hsl(207, 54%, 57%) |
| OKLCH | oklch(65.5% 0.104 244.6) |
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 #5597CC | 3.14:1 | AA large text | Lc -63.7 | Content text, not long reading |
| Black text on #5597CC | 6.68:1 | AA | Lc 45.8 | Large or bold text, headings |
| #5597CC text on white | 3.14:1 | AA large text | Lc 58.3 | Large or bold text, headings |
| #5597CC text on black | 6.68:1 | AA | Lc -43.4 | 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
#E2EBF3
oklch(93.6% 0.015 244.7)
-
Step 200
200
#CADCEB
oklch(88.6% 0.028 243.1)
-
Step 300
300
#A6C5E0
oklch(81% 0.051 244.8)
-
Step 400
400
#74A6D0
oklch(70.6% 0.082 244.7)
-
Step 500
500 (this color)
#5597CC
oklch(65.5% 0.104 244.6)
-
Step 600
600
#2E79B1
oklch(55.6% 0.114 244.7)
-
Step 700
700
#206698
oklch(49.2% 0.105 244.3)
-
Step 800
800
#1D537B
oklch(42.7% 0.087 244.5)
-
Step 900
900
#1E4563
oklch(37.7% 0.068 244.3)
-
Step 950
950
#13293A
oklch(27.2% 0.042 243.6)
#5597CC 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) | #8098CE | 0.048 |
| Deuteranopia (no green cones) | #708CCB | 0.039 |
| Tritanopia (no blue cones) | #00A4A9 | 0.084 |
| Achromatopsia (no color) | #919191 | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5597CC
#5597CC
oklch(65.5% 0.104 244.6)
- #BD8247
#BD8247
oklch(65.4% 0.105 64.1)
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 #5597CC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.035
- Dark Sky Blue #448EE4 ΔE 0.051
- Cornflower Blue #6495ED ΔE 0.055
- Chefchaouen Blue #4895EF ΔE 0.055
- Dusty Blue #5A86AD ΔE 0.058
- Cool Blue #4984B8 ΔE 0.059
- Silver Lake Blue #778DA9 ΔE 0.059
- Off Blue #5684AE ΔE 0.062
Use #5597CC 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.