#5589BC
Closest named color: Cool Blue (#4984B8). oklch(61.5% 0.096 249.2), rgb(85, 137, 188).
Aa
Black text reads best on this color (5.69:1).
About this color
#5589BC is a medium-dark, moderately saturated blue. In OKLCH its lightness is 62%, its chroma 0.096 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Blue (#4984B8), ΔE 0.020 away. Black text reads best on it, at 5.69:1.
| Hue family | Blues |
| Lightness | medium-dark (62%) |
| Chroma | moderately saturated (0.096) |
| Temperature | cool |
| Nearest name | Cool Blue (#4984B8) |
| Black text | 5.69:1 |
| White text | 3.69:1 |
Values
| HEX | #5589BC |
| RGB | rgb(85, 137, 188) |
| HSL | hsl(210, 43%, 54%) |
| OKLCH | oklch(61.5% 0.096 249.2) |
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 #5589BC | 3.69:1 | AA large text | Lc -69.8 | Content text, not long reading |
| Black text on #5589BC | 5.69:1 | AA | Lc 39.7 | Non-text elements, placeholder text |
| #5589BC text on white | 3.69:1 | AA large text | Lc 64.3 | Content text, not long reading |
| #5589BC text on black | 5.69:1 | AA | Lc -37.3 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EBF3
oklch(93.6% 0.014 248)
-
Step 200
200
#CCDBEA
oklch(88.5% 0.026 248.1)
-
Step 300
300
#AAC4DE
oklch(80.9% 0.046 248.4)
-
Step 400
400
#7CA5CE
oklch(70.7% 0.075 248.9)
-
Step 500
500 (this color)
#5589BC
oklch(61.5% 0.096 249.2)
-
Step 600
600
#3E77AE
oklch(55.6% 0.105 249.5)
-
Step 700
700
#306495
oklch(49.1% 0.097 249.2)
-
Step 800
800
#295279
oklch(42.8% 0.08 249.1)
-
Step 900
900
#264461
oklch(37.7% 0.062 249)
-
Step 950
950
#172839
oklch(27.1% 0.039 249.5)
#5589BC 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) | #748BBE | 0.037 |
| Deuteranopia (no green cones) | #6680BB | 0.029 |
| Tritanopia (no blue cones) | #0F959B | 0.082 |
| Achromatopsia (no color) | #858585 | 0.096 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5589BC
#5589BC
oklch(61.5% 0.096 249.2)
- #AA7A40
#AA7A40
oklch(61.6% 0.096 69.6)
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 #5589BC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Blue #4984B8 ΔE 0.020
- Faded Blue #658CBB ΔE 0.021
- Dusty Blue #5A86AD ΔE 0.022
- Off Blue #5684AE ΔE 0.023
- Steel Blue #4682B4 ΔE 0.028
- Blue NCS #118AB2 ΔE 0.047
- Water Blue #0E87CC ΔE 0.050
- Silver Lake Blue #778DA9 ΔE 0.052
Use #5589BC 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.