#578199
Closest named color: Grey Blue (#647D8E). oklch(58.2% 0.059 234.2), rgb(87, 129, 153).
Aa
Black text reads best on this color (5.00:1).
About this color
#578199 is a medium-dark, muted blue. In OKLCH its lightness is 58%, its chroma 0.059 and its hue 234°. Its hue sits on the cool side of the wheel. The nearest named color is Grey Blue (#647D8E), ΔE 0.021 away. Black text reads best on it, at 5.00:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | muted (0.059) |
| Temperature | cool |
| Nearest name | Grey Blue (#647D8E) |
| Black text | 5.00:1 |
| White text | 4.19:1 |
Values
| HEX | #578199 |
| RGB | rgb(87, 129, 153) |
| HSL | hsl(202, 27%, 47%) |
| OKLCH | oklch(58.2% 0.059 234.2) |
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 #578199 | 4.19:1 | AA large text | Lc -74.4 | Content text, not long reading |
| Black text on #578199 | 5.00:1 | AA | Lc 35.2 | Non-text elements, placeholder text |
| #578199 text on white | 4.19:1 | AA large text | Lc 68.9 | Content text, not long reading |
| #578199 text on black | 5.00:1 | AA | Lc -32.8 | 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
#D0DBE2
oklch(88.5% 0.015 235.4)
-
Step 300
300
#B1C4D0
oklch(81% 0.027 235.4)
-
Step 400
400
#87A6B8
oklch(70.8% 0.043 233.7)
-
Step 500
500
#698FA6
oklch(63% 0.055 235.4)
-
Step 600
600 (this color)
#578199
oklch(58.2% 0.059 234.2)
-
Step 700
700
#40667C
oklch(49.1% 0.056 234.9)
-
Step 800
800
#355364
oklch(42.6% 0.045 234.2)
-
Step 900
900
#2F4552
oklch(37.8% 0.035 234.9)
-
Step 950
950
#1C2830
oklch(26.9% 0.022 237.9)
#578199 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) | #76809A | 0.039 |
| Deuteranopia (no green cones) | #6C7899 | 0.035 |
| Tritanopia (no blue cones) | #3C8789 | 0.044 |
| Achromatopsia (no color) | #7C7C7C | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #578199
#578199
oklch(58.2% 0.059 234.2)
- #977259
#977259
oklch(58.2% 0.059 55.3)
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 #578199, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grey Blue #647D8E ΔE 0.021
- Stormy Blue #507B9C ΔE 0.022
- Cerulean #457B9D ΔE 0.029
- Dusty Blue #5A86AD ΔE 0.032
- Off Blue #5684AE ΔE 0.032
- Slate Gray #708090 ΔE 0.032
- Battleship Grey #6B7C85 ΔE 0.036
- Steel Grey #6F828A ΔE 0.037
Use #578199 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.