#5C818F
Closest named color: Grey Blue (#647D8E). oklch(58.1% 0.047 223.4), rgb(92, 129, 143).
Aa
Black text reads best on this color (4.99:1).
About this color
#5C818F is a medium-dark, muted teal or cyan. In OKLCH its lightness is 58%, its chroma 0.047 and its hue 223°. Its hue sits on the cool side of the wheel. The nearest named color is Grey Blue (#647D8E), ΔE 0.014 away. Black text reads best on it, at 4.99:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (58%) |
| Chroma | muted (0.047) |
| Temperature | cool |
| Nearest name | Grey Blue (#647D8E) |
| Black text | 4.99:1 |
| White text | 4.20:1 |
Values
| HEX | #5C818F |
| RGB | rgb(92, 129, 143) |
| HSL | hsl(196, 22%, 46%) |
| OKLCH | oklch(58.1% 0.047 223.4) |
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 #5C818F | 4.20:1 | AA large text | Lc -74.5 | Content text, not long reading |
| Black text on #5C818F | 4.99:1 | AA | Lc 35.1 | Non-text elements, placeholder text |
| #5C818F text on white | 4.20:1 | AA large text | Lc 69.0 | Content text, not long reading |
| #5C818F text on black | 4.99:1 | AA | Lc -32.7 | 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
#E6EBED
oklch(93.7% 0.006 223.5)
-
Step 200
200
#D1DBDF
oklch(88.5% 0.012 223.5)
-
Step 300
300
#B3C4CB
oklch(80.9% 0.021 224.4)
-
Step 400
400
#8BA6B0
oklch(70.8% 0.033 222.3)
-
Step 500
500
#6D909D
oklch(63.2% 0.044 222.7)
-
Step 600
600 (this color)
#5C818F
oklch(58.1% 0.047 223.4)
-
Step 700
700
#456673
oklch(49% 0.043 224.5)
-
Step 800
800
#39545E
oklch(42.8% 0.036 223)
-
Step 900
900
#31454D
oklch(37.7% 0.029 224.6)
-
Step 950
950
#1D282D
oklch(26.9% 0.018 227.5)
#5C818F 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) | #797F90 | 0.038 |
| Deuteranopia (no green cones) | #71798F | 0.034 |
| Tritanopia (no blue cones) | #4A8685 | 0.032 |
| Achromatopsia (no color) | #7B7B7B | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5C818F
#5C818F
oklch(58.1% 0.047 223.4)
- #937264
#937264
oklch(58.1% 0.047 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 #5C818F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grey Blue #647D8E ΔE 0.014
- Battleship Grey #6B7C85 ΔE 0.023
- Steel Grey #6F828A ΔE 0.025
- Slate Gray #708090 ΔE 0.026
- Stormy Blue #507B9C ΔE 0.034
- Steel #738595 ΔE 0.034
- Battleship Gray #6C757D ΔE 0.039
- Cerulean #457B9D ΔE 0.041
Use #5C818F 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.