#6587A4
Closest named color: Dusty Blue (#5A86AD). oklch(60.9% 0.059 244.7), rgb(101, 135, 164).
Aa
Black text reads best on this color (5.55:1).
About this color
#6587A4 is a medium-dark, muted blue. In OKLCH its lightness is 61%, its chroma 0.059 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Blue (#5A86AD), ΔE 0.019 away. Black text reads best on it, at 5.55:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | muted (0.059) |
| Temperature | cool |
| Nearest name | Dusty Blue (#5A86AD) |
| Black text | 5.55:1 |
| White text | 3.78:1 |
Values
| HEX | #6587A4 |
| RGB | rgb(101, 135, 164) |
| HSL | hsl(208, 26%, 52%) |
| OKLCH | oklch(60.9% 0.059 244.7) |
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 #6587A4 | 3.78:1 | AA large text | Lc -70.8 | Content text, not long reading |
| Black text on #6587A4 | 5.55:1 | AA | Lc 38.8 | Non-text elements, placeholder text |
| #6587A4 text on white | 3.78:1 | AA large text | Lc 65.3 | Content text, not long reading |
| #6587A4 text on black | 5.55:1 | AA | Lc -36.4 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E5EBEF
oklch(93.7% 0.008 236.6)
-
Step 200
200
#D1DAE3
oklch(88.4% 0.016 248)
-
Step 300
300
#B2C3D2
oklch(80.9% 0.028 244.8)
-
Step 400
400
#89A4BC
oklch(70.6% 0.046 245.3)
-
Step 500
500 (this color)
#6587A4
oklch(60.9% 0.059 244.7)
-
Step 600
600
#537896
oklch(55.7% 0.063 243.7)
-
Step 700
700
#436480
oklch(49% 0.059 245)
-
Step 800
800
#385268
oklch(42.7% 0.048 244.8)
-
Step 900
900
#304455
oklch(37.7% 0.039 244.7)
-
Step 950
950
#1C2832
oklch(27% 0.025 244)
#6587A4 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) | #7B87A5 | 0.029 |
| Deuteranopia (no green cones) | #7380A3 | 0.025 |
| Tritanopia (no blue cones) | #4F8E90 | 0.049 |
| Achromatopsia (no color) | #838383 | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6587A4
#6587A4
oklch(60.9% 0.059 244.7)
- #9C7C5E
#9C7C5E
oklch(60.9% 0.058 64.5)
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 #6587A4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Blue #5A86AD ΔE 0.019
- Off Blue #5684AE ΔE 0.026
- Steel #738595 ΔE 0.026
- Light Slate Gray #778899 ΔE 0.028
- Blue Grey #758DA3 ΔE 0.028
- Silver Lake Blue #778DA9 ΔE 0.031
- Slate Gray #708090 ΔE 0.032
- Faded Blue #658CBB ΔE 0.035
Use #6587A4 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.