#617678
Closest named color: Battleship Gray (#6C757D). oklch(55% 0.025 203.6), rgb(97, 118, 120).
Aa
White text reads best on this color (4.80:1).
About this color
#617678 is a medium-dark close to neutral grey. In OKLCH its lightness is 55%, its chroma 0.025. It has too little chroma to lean warm or cool. The nearest named color is Battleship Gray (#6C757D), ΔE 0.018 away. White text reads best on it, at 4.80:1.
| Hue family | Neutrals |
| Lightness | medium-dark (55%) |
| Chroma | close to neutral grey (0.025) |
| Temperature | neutral |
| Nearest name | Battleship Gray (#6C757D) |
| Black text | 4.37:1 |
| White text | 4.80:1 |
Values
| HEX | #617678 |
| RGB | rgb(97, 118, 120) |
| HSL | hsl(185, 11%, 43%) |
| OKLCH | oklch(55% 0.025 203.6) |
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 #617678 | 4.80:1 | AA | Lc -78.8 | Fine for body text |
| Black text on #617678 | 4.37:1 | AA large text | Lc 30.7 | Non-text elements, placeholder text |
| #617678 text on white | 4.80:1 | AA | Lc 73.3 | Content text, not long reading |
| #617678 text on black | 4.37:1 | AA large text | Lc -28.4 | 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
#E7EAEB
oklch(93.5% 0.004 219.5)
-
Step 200
200
#D5DADB
oklch(88.5% 0.006 211)
-
Step 300
300
#B9C3C4
oklch(81% 0.011 204.1)
-
Step 400
400
#94A4A6
oklch(70.7% 0.018 205.8)
-
Step 500
500
#7A8E90
oklch(63.2% 0.023 204)
-
Step 600
600 (this color)
#617678
oklch(55% 0.025 203.6)
-
Step 700
700
#526567
oklch(49.2% 0.023 204.3)
-
Step 800
800
#435254
oklch(42.6% 0.019 206.4)
-
Step 900
900
#394445
oklch(37.7% 0.014 203.3)
-
Step 950
950
#212828
oklch(27% 0.01 196.6)
#617678 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) | #737478 | 0.026 |
| Deuteranopia (no green cones) | #6E7178 | 0.022 |
| Tritanopia (no blue cones) | #5A7877 | 0.011 |
| Achromatopsia (no color) | #727272 | 0.025 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #617678
#617678
oklch(55% 0.025 203.6)
- #806C6A
#806C6A
oklch(55% 0.026 24.7)
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 #617678, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Battleship Gray #6C757D ΔE 0.018
- Battleship Grey #6B7C85 ΔE 0.028
- Grey Blue #647D8E ΔE 0.035
- Dim Gray #696969 ΔE 0.038
- Metallic Blue #4F738E ΔE 0.044
- Steel Grey #6F828A ΔE 0.045
- Slate Gray #708090 ΔE 0.048
- Medium Grey #7D7F7C ΔE 0.050
Use #617678 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.