#587580
Closest named color: Metallic Blue (#4F738E). oklch(54.4% 0.038 223.2), rgb(88, 117, 128).
Aa
White text reads best on this color (4.91:1).
About this color
#587580 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 54%, its chroma 0.038 and its hue 223°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.027 away. White text reads best on it, at 4.91:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (54%) |
| Chroma | muted (0.038) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 4.27:1 |
| White text | 4.91:1 |
Values
| HEX | #587580 |
| RGB | rgb(88, 117, 128) |
| HSL | hsl(197, 19%, 42%) |
| OKLCH | oklch(54.4% 0.038 223.2) |
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 #587580 | 4.91:1 | AA | Lc -79.5 | Fine for body text |
| Black text on #587580 | 4.27:1 | AA large text | Lc 30.0 | Non-text elements, placeholder text |
| #587580 text on white | 4.91:1 | AA | Lc 74.0 | Content text, not long reading |
| #587580 text on black | 4.27:1 | AA large text | Lc -27.7 | Dividers and decoration only |
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 600.
-
Step 50
50
#F4F6F6
oklch(97.2% 0.002 197.1)
-
Step 100
100
#E6EBEC
oklch(93.7% 0.006 211)
-
Step 200
200
#D3DBDE
oklch(88.6% 0.01 222.1)
-
Step 300
300
#B6C3C9
oklch(80.9% 0.017 227)
-
Step 400
400
#8FA5AD
oklch(70.8% 0.027 221.7)
-
Step 500
500
#738F99
oklch(63.2% 0.035 221.6)
-
Step 600
600 (this color)
#587580
oklch(54.4% 0.038 223.2)
-
Step 700
700
#4B656F
oklch(49% 0.035 223.6)
-
Step 800
800
#3E535B
oklch(42.8% 0.029 223.3)
-
Step 900
900
#35444A
oklch(37.6% 0.022 224.2)
-
Step 950
950
#1F282C
oklch(27% 0.015 226.6)
#587580 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) | #6F7381 | 0.032 |
| Deuteranopia (no green cones) | #686E80 | 0.028 |
| Tritanopia (no blue cones) | #4B7978 | 0.025 |
| Achromatopsia (no color) | #707070 | 0.038 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #587580
#587580
oklch(54.4% 0.038 223.2)
- #83695E
#83695E
oklch(54.3% 0.037 44.1)
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 #587580, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.027
- Battleship Gray #6C757D ΔE 0.027
- Grey Blue #647D8E ΔE 0.034
- Battleship Grey #6B7C85 ΔE 0.035
- Stormy Blue #507B9C ΔE 0.042
- Dim Gray #696969 ΔE 0.044
- Cerulean #457B9D ΔE 0.046
- Dull Blue #49759C ΔE 0.046
Use #587580 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.