#578499
Closest named color: Grey Blue (#647D8E). oklch(58.9% 0.059 229), rgb(87, 132, 153).
Aa
Black text reads best on this color (5.16:1).
About this color
#578499 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 59%, its chroma 0.059 and its hue 229°. Its hue sits on the cool side of the wheel. The nearest named color is Grey Blue (#647D8E), ΔE 0.025 away. Black text reads best on it, at 5.16:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (59%) |
| Chroma | muted (0.059) |
| Temperature | cool |
| Nearest name | Grey Blue (#647D8E) |
| Black text | 5.16:1 |
| White text | 4.06:1 |
Values
| HEX | #578499 |
| RGB | rgb(87, 132, 153) |
| HSL | hsl(199, 27%, 47%) |
| OKLCH | oklch(58.9% 0.059 229) |
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 #578499 | 4.06:1 | AA large text | Lc -73.3 | Content text, not long reading |
| Black text on #578499 | 5.16:1 | AA | Lc 36.3 | Non-text elements, placeholder text |
| #578499 text on white | 4.06:1 | AA large text | Lc 67.8 | Content text, not long reading |
| #578499 text on black | 5.16:1 | AA | Lc -33.9 | 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 600.
-
Step 50
50
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E5EBEE
oklch(93.6% 0.008 228.9)
-
Step 200
200
#D0DBE1
oklch(88.5% 0.015 231.2)
-
Step 300
300
#B0C4CE
oklch(80.8% 0.026 229.2)
-
Step 400
400
#86A6B6
oklch(70.7% 0.042 229.7)
-
Step 500
500
#6790A4
oklch(63.1% 0.054 229.7)
-
Step 600
600 (this color)
#578499
oklch(58.9% 0.059 229)
-
Step 700
700
#3E677A
oklch(49.1% 0.055 229.2)
-
Step 800
800
#345463
oklch(42.7% 0.045 229.3)
-
Step 900
900
#2D4551
oklch(37.6% 0.036 230.6)
-
Step 950
950
#1B292F
oklch(27.1% 0.022 226.4)
#578499 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) | #79829A | 0.043 |
| Deuteranopia (no green cones) | #707B99 | 0.038 |
| Tritanopia (no blue cones) | #3C8A8B | 0.041 |
| Achromatopsia (no color) | #7E7E7E | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #578499
#578499
oklch(58.9% 0.059 229)
- #9A735E
#9A735E
oklch(58.9% 0.058 49.5)
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 #578499, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grey Blue #647D8E ΔE 0.025
- Stormy Blue #507B9C ΔE 0.030
- Dusty Blue #5A86AD ΔE 0.031
- Slate Gray #708090 ΔE 0.032
- Off Blue #5684AE ΔE 0.033
- Steel Grey #6F828A ΔE 0.034
- Steel #738595 ΔE 0.035
- Cerulean #457B9D ΔE 0.037
Use #578499 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.