#5A7B8A
Closest named color: Grey Blue (#647D8E). oklch(56.3% 0.044 227.7), rgb(90, 123, 138).
Aa
Black text reads best on this color (4.63:1).
About this color
#5A7B8A is a medium-dark, muted teal or cyan. In OKLCH its lightness is 56%, its chroma 0.044 and its hue 228°. Its hue sits on the cool side of the wheel. The nearest named color is Grey Blue (#647D8E), ΔE 0.016 away. Black text reads best on it, at 4.63:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (56%) |
| Chroma | muted (0.044) |
| Temperature | cool |
| Nearest name | Grey Blue (#647D8E) |
| Black text | 4.63:1 |
| White text | 4.53:1 |
Values
| HEX | #5A7B8A |
| RGB | rgb(90, 123, 138) |
| HSL | hsl(199, 21%, 45%) |
| OKLCH | oklch(56.3% 0.044 227.7) |
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 #5A7B8A | 4.53:1 | AA | Lc -76.9 | Fine for body text |
| Black text on #5A7B8A | 4.63:1 | AA | Lc 32.6 | Non-text elements, placeholder text |
| #5A7B8A text on white | 4.53:1 | AA | Lc 71.4 | Content text, not long reading |
| #5A7B8A text on black | 4.63:1 | AA | Lc -30.2 | 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
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E6EBED
oklch(93.7% 0.006 223.5)
-
Step 200
200
#D2DBDF
oklch(88.6% 0.011 226)
-
Step 300
300
#B4C3CB
oklch(80.8% 0.02 230.8)
-
Step 400
400
#8DA5B0
oklch(70.7% 0.031 227.2)
-
Step 500
500
#708F9D
oklch(63.1% 0.041 227.2)
-
Step 600
600 (this color)
#5A7B8A
oklch(56.3% 0.044 227.7)
-
Step 700
700
#486673
oklch(49.2% 0.041 226.7)
-
Step 800
800
#3B535E
oklch(42.7% 0.034 228)
-
Step 900
900
#33454D
oklch(37.8% 0.027 227)
-
Step 950
950
#1E282D
oklch(27% 0.017 229.8)
#5A7B8A 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) | #73798B | 0.033 |
| Deuteranopia (no green cones) | #6C748A | 0.030 |
| Tritanopia (no blue cones) | #4A7F80 | 0.029 |
| Achromatopsia (no color) | #767676 | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5A7B8A
#5A7B8A
oklch(56.3% 0.044 227.7)
- #8C6E5F
#8C6E5F
oklch(56.4% 0.044 47.9)
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 #5A7B8A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grey Blue #647D8E ΔE 0.016
- Battleship Grey #6B7C85 ΔE 0.023
- Battleship Gray #6C757D ΔE 0.029
- Stormy Blue #507B9C ΔE 0.030
- Metallic Blue #4F738E ΔE 0.031
- Slate Gray #708090 ΔE 0.035
- Cerulean #457B9D ΔE 0.036
- Steel Grey #6F828A ΔE 0.036
Use #5A7B8A 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.