#5598DE
Closest named color: Cornflower Blue (#6495ED). oklch(66.6% 0.125 251.1), rgb(85, 152, 222).
Aa
Black text reads best on this color (6.93:1).
About this color
#5598DE is a medium-light, moderately saturated blue. In OKLCH its lightness is 67%, its chroma 0.125 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.030 away. Black text reads best on it, at 6.93:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.125) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 6.93:1 |
| White text | 3.02:1 |
Values
| HEX | #5598DE |
| RGB | rgb(85, 152, 222) |
| HSL | hsl(211, 67%, 60%) |
| OKLCH | oklch(66.6% 0.125 251.1) |
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 #5598DE | 3.02:1 | AA large text | Lc -62.2 | Content text, not long reading |
| Black text on #5598DE | 6.93:1 | AA | Lc 47.2 | Large or bold text, headings |
| #5598DE text on white | 3.02:1 | AA large text | Lc 56.8 | Large or bold text, headings |
| #5598DE text on black | 6.93:1 | AA | Lc -44.9 | 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
#E1EBF6
oklch(93.6% 0.018 250.6)
-
Step 200
200
#C9DBEF
oklch(88.4% 0.034 251)
-
Step 300
300
#A4C4E8
oklch(80.9% 0.062 251.6)
-
Step 400
400
#72A5DC
oklch(70.8% 0.098 251.1)
-
Step 500
500 (this color)
#5598DE
oklch(66.6% 0.125 251.1)
-
Step 600
600
#2A76BF
oklch(55.6% 0.135 251)
-
Step 700
700
#1B63A5
oklch(49.2% 0.126 250.8)
-
Step 800
800
#1A5186
oklch(42.8% 0.105 251.1)
-
Step 900
900
#1C436B
oklch(37.6% 0.082 251.4)
-
Step 950
950
#12283F
oklch(27.1% 0.051 251.2)
#5598DE 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) | #7A9BE1 | 0.041 |
| Deuteranopia (no green cones) | #688EDD | 0.030 |
| Tritanopia (no blue cones) | #00A8B1 | 0.101 |
| Achromatopsia (no color) | #949494 | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5598DE
#5598DE
oklch(66.6% 0.125 251.1)
- #C4852E
#C4852E
oklch(66.6% 0.126 70.6)
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 #5598DE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.030
- Chefchaouen Blue #4895EF ΔE 0.030
- Dark Sky Blue #448EE4 ΔE 0.036
- Soft Blue #6488EA ΔE 0.051
- Faded Blue #658CBB ΔE 0.055
- Dodger Blue #1E90FF ΔE 0.067
- Water Blue #0E87CC ΔE 0.072
- Perrywinkle #8F8CE7 ΔE 0.074
Use #5598DE 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.