#5B87BB
Closest named color: Faded Blue (#658CBB). oklch(61.3% 0.093 253.3), rgb(91, 135, 187).
Aa
Black text reads best on this color (5.62:1).
About this color
#5B87BB is a medium-dark, moderately saturated blue. In OKLCH its lightness is 61%, its chroma 0.093 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.019 away. Black text reads best on it, at 5.62:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.093) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 5.62:1 |
| White text | 3.73:1 |
Values
| HEX | #5B87BB |
| RGB | rgb(91, 135, 187) |
| HSL | hsl(213, 41%, 55%) |
| OKLCH | oklch(61.3% 0.093 253.3) |
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 #5B87BB | 3.73:1 | AA large text | Lc -70.3 | Content text, not long reading |
| Black text on #5B87BB | 5.62:1 | AA | Lc 39.3 | Non-text elements, placeholder text |
| #5B87BB text on white | 3.73:1 | AA large text | Lc 64.8 | Content text, not long reading |
| #5B87BB text on black | 5.62:1 | AA | Lc -36.9 | 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
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E4EBF3
oklch(93.7% 0.013 251.6)
-
Step 200
200
#CEDBEA
oklch(88.6% 0.025 251.9)
-
Step 300
300
#ADC3DE
oklch(80.9% 0.045 253.6)
-
Step 400
400
#81A4CE
oklch(70.8% 0.073 253.3)
-
Step 500
500 (this color)
#5B87BB
oklch(61.3% 0.093 253.3)
-
Step 600
600
#4676AD
oklch(55.7% 0.101 253)
-
Step 700
700
#376395
oklch(49.2% 0.094 252.9)
-
Step 800
800
#2E5179
oklch(42.8% 0.078 252.9)
-
Step 900
900
#2A4361
oklch(37.7% 0.06 253.7)
-
Step 950
950
#192739
oklch(26.9% 0.039 255.1)
#5B87BB 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) | #7289BD | 0.029 |
| Deuteranopia (no green cones) | #6680BA | 0.022 |
| Tritanopia (no blue cones) | #2B9399 | 0.082 |
| Achromatopsia (no color) | #848484 | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B87BB
#5B87BB
oklch(61.3% 0.093 253.3)
- #A67B40
#A67B40
oklch(61.3% 0.093 73.2)
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 #5B87BB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.019
- Dusty Blue #5A86AD ΔE 0.021
- Off Blue #5684AE ΔE 0.022
- Cool Blue #4984B8 ΔE 0.022
- Steel Blue #4682B4 ΔE 0.029
- Silver Lake Blue #778DA9 ΔE 0.050
- Blue NCS #118AB2 ΔE 0.053
- Water Blue #0E87CC ΔE 0.054
Use #5B87BB 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.