#4587BE
Closest named color: Cool Blue (#4984B8). oklch(60.4% 0.108 246), rgb(69, 135, 190).
Aa
Black text reads best on this color (5.46:1).
About this color
#4587BE is a medium-dark, moderately saturated blue. In OKLCH its lightness is 60%, its chroma 0.108 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Blue (#4984B8), ΔE 0.011 away. Black text reads best on it, at 5.46:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.108) |
| Temperature | cool |
| Nearest name | Cool Blue (#4984B8) |
| Black text | 5.46:1 |
| White text | 3.84:1 |
Values
| HEX | #4587BE |
| RGB | rgb(69, 135, 190) |
| HSL | hsl(207, 48%, 51%) |
| OKLCH | oklch(60.4% 0.108 246) |
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 #4587BE | 3.84:1 | AA large text | Lc -71.2 | Content text, not long reading |
| Black text on #4587BE | 5.46:1 | AA | Lc 38.4 | Non-text elements, placeholder text |
| #4587BE text on white | 3.84:1 | AA large text | Lc 65.7 | Content text, not long reading |
| #4587BE text on black | 5.46:1 | AA | Lc -35.9 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E2EBF4
oklch(93.6% 0.016 248)
-
Step 200
200
#CADCEC
oklch(88.6% 0.029 244.9)
-
Step 300
300
#A5C5E1
oklch(80.9% 0.053 244.9)
-
Step 400
400
#74A6D2
oklch(70.7% 0.084 245.9)
-
Step 500
500 (this color)
#4587BE
oklch(60.4% 0.108 246)
-
Step 600
600
#2D78B3
oklch(55.5% 0.117 246.1)
-
Step 700
700
#1F659A
oklch(49.1% 0.109 245.9)
-
Step 800
800
#1C537D
oklch(42.8% 0.09 245.5)
-
Step 900
900
#1E4565
oklch(37.8% 0.071 245.9)
-
Step 950
950
#13283B
oklch(26.9% 0.045 247.5)
#4587BE 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) | #6F89C0 | 0.046 |
| Deuteranopia (no green cones) | #5E7DBD | 0.035 |
| Tritanopia (no blue cones) | #00949A | 0.083 |
| Achromatopsia (no color) | #828282 | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4587BE
#4587BE
oklch(60.4% 0.108 246)
- #AD7333
#AD7333
oklch(60.4% 0.108 65.7)
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 #4587BE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Blue #4984B8 ΔE 0.011
- Steel Blue #4682B4 ΔE 0.018
- Off Blue #5684AE ΔE 0.027
- Dusty Blue #5A86AD ΔE 0.031
- Water Blue #0E87CC ΔE 0.034
- Blue NCS #118AB2 ΔE 0.037
- Faded Blue #658CBB ΔE 0.038
- Windows Blue #3778BF ΔE 0.047
Use #4587BE 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.