#7587A3
Closest named color: Light Slate Gray (#778899). oklch(61.9% 0.047 259.1), rgb(117, 135, 163).
Aa
Black text reads best on this color (5.75:1).
About this color
#7587A3 is a medium-dark, muted blue. In OKLCH its lightness is 62%, its chroma 0.047 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Light Slate Gray (#778899), ΔE 0.017 away. Black text reads best on it, at 5.75:1.
| Hue family | Blues |
| Lightness | medium-dark (62%) |
| Chroma | muted (0.047) |
| Temperature | cool |
| Nearest name | Light Slate Gray (#778899) |
| Black text | 5.75:1 |
| White text | 3.65:1 |
Values
| HEX | #7587A3 |
| RGB | rgb(117, 135, 163) |
| HSL | hsl(217, 20%, 55%) |
| OKLCH | oklch(61.9% 0.047 259.1) |
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 #7587A3 | 3.65:1 | AA large text | Lc -69.6 | Content text, not long reading |
| Black text on #7587A3 | 5.75:1 | AA | Lc 40.0 | Non-text elements, placeholder text |
| #7587A3 text on white | 3.65:1 | AA large text | Lc 64.1 | Content text, not long reading |
| #7587A3 text on black | 5.75:1 | AA | Lc -37.6 | 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
#F4F5F7
oklch(97% 0.003 264.5)
-
Step 100
100
#E7EAEE
oklch(93.6% 0.006 255.5)
-
Step 200
200
#D4D9E2
oklch(88.4% 0.013 262.4)
-
Step 300
300
#B8C1D0
oklch(80.9% 0.023 260.7)
-
Step 400
400
#93A2B8
oklch(70.8% 0.036 257.9)
-
Step 500
500 (this color)
#7587A3
oklch(61.9% 0.047 259.1)
-
Step 600
600
#617492
oklch(55.5% 0.052 259.4)
-
Step 700
700
#50627C
oklch(49.2% 0.047 257.5)
-
Step 800
800
#425065
oklch(42.8% 0.039 258.3)
-
Step 900
900
#384252
oklch(37.7% 0.031 259.7)
-
Step 950
950
#212730
oklch(27.1% 0.019 258.4)
#7587A3 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) | #7E88A4 | 0.013 |
| Deuteranopia (no green cones) | #7984A2 | 0.009 |
| Tritanopia (no blue cones) | #688D90 | 0.043 |
| Achromatopsia (no color) | #868686 | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #7587A3
#7587A3
oklch(61.9% 0.047 259.1)
- #958366
#958366
oklch(61.9% 0.047 79.5)
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 #7587A3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Slate Gray #778899 ΔE 0.017
- Blue Grey #758DA3 ΔE 0.017
- Silver Lake Blue #778DA9 ΔE 0.018
- Steel #738595 ΔE 0.021
- Lavender Gray #7E7F9A ΔE 0.024
- Slate Gray #708090 ΔE 0.032
- Dusty Blue #5A86AD ΔE 0.036
- Faded Blue #658CBB ΔE 0.038
Use #7587A3 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.