#559ABD
Closest named color: Faded Blue (#658CBB). oklch(65.5% 0.087 232.3), rgb(85, 154, 189).
Aa
Black text reads best on this color (6.74:1).
About this color
#559ABD is a medium-light, moderately saturated blue. In OKLCH its lightness is 65%, its chroma 0.087 and its hue 232°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.040 away. Black text reads best on it, at 6.74:1.
| Hue family | Blues |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.087) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 6.74:1 |
| White text | 3.11:1 |
Values
| HEX | #559ABD |
| RGB | rgb(85, 154, 189) |
| HSL | hsl(200, 44%, 54%) |
| OKLCH | oklch(65.5% 0.087 232.3) |
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 #559ABD | 3.11:1 | AA large text | Lc -63.4 | Content text, not long reading |
| Black text on #559ABD | 6.74:1 | AA | Lc 46.1 | Large or bold text, headings |
| #559ABD text on white | 3.11:1 | AA large text | Lc 58.0 | Large or bold text, headings |
| #559ABD text on black | 6.74:1 | 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
#E2EBF1
oklch(93.5% 0.013 236.6)
-
Step 200
200
#CADCE6
oklch(88.4% 0.024 231.9)
-
Step 300
300
#A6C6D8
oklch(80.9% 0.043 232.7)
-
Step 400
400
#75A9C4
oklch(70.8% 0.068 231.6)
-
Step 500
500 (this color)
#559ABD
oklch(65.5% 0.087 232.3)
-
Step 600
600
#2D7CA1
oklch(55.5% 0.095 232.6)
-
Step 700
700
#1E698A
oklch(49.1% 0.088 232)
-
Step 800
800
#1C5670
oklch(42.8% 0.073 231.5)
-
Step 900
900
#1E475B
oklch(37.8% 0.057 232.2)
-
Step 950
950
#132935
oklch(26.9% 0.036 234.1)
#559ABD 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) | #8998BF | 0.059 |
| Deuteranopia (no green cones) | #7A8DBC | 0.051 |
| Tritanopia (no blue cones) | #00A4A5 | 0.067 |
| Achromatopsia (no color) | #929292 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #559ABD
#559ABD
oklch(65.5% 0.087 232.3)
- #BB815E
#BB815E
oklch(65.4% 0.087 51.8)
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 #559ABD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.040
- Greyblue #77A1B5 ΔE 0.045
- Silver Lake Blue #778DA9 ΔE 0.049
- Cadet Blue #5F9EA0 ΔE 0.049
- Blue Grey #758DA3 ΔE 0.052
- Dusty Blue #5A86AD ΔE 0.056
- Off Blue #5684AE ΔE 0.062
- Bluegrey #85A3B2 ΔE 0.064
Use #559ABD 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.