#657689
Closest named color: Battleship Gray (#6C757D). oklch(55.9% 0.036 251.3), rgb(101, 118, 137).
Aa
White text reads best on this color (4.66:1).
About this color
#657689 is a medium-dark, muted blue. In OKLCH its lightness is 56%, its chroma 0.036 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Battleship Gray (#6C757D), ΔE 0.020 away. White text reads best on it, at 4.66:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | muted (0.036) |
| Temperature | cool |
| Nearest name | Battleship Gray (#6C757D) |
| Black text | 4.50:1 |
| White text | 4.66:1 |
Values
| HEX | #657689 |
| RGB | rgb(101, 118, 137) |
| HSL | hsl(212, 15%, 47%) |
| OKLCH | oklch(55.9% 0.036 251.3) |
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 #657689 | 4.66:1 | AA | Lc -77.8 | Fine for body text |
| Black text on #657689 | 4.50:1 | AA | Lc 31.7 | Non-text elements, placeholder text |
| #657689 text on white | 4.66:1 | AA | Lc 72.4 | Content text, not long reading |
| #657689 text on black | 4.50:1 | AA | Lc -29.3 | 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
#F4F5F7
oklch(97% 0.003 264.5)
-
Step 100
100
#E8EAED
oklch(93.6% 0.005 258.3)
-
Step 200
200
#D5DADF
oklch(88.6% 0.009 247.9)
-
Step 300
300
#B9C2CB
oklch(81% 0.016 248)
-
Step 400
400
#95A2B1
oklch(70.7% 0.026 252)
-
Step 500
500
#7B8B9D
oklch(63% 0.033 251.4)
-
Step 600
600 (this color)
#657689
oklch(55.9% 0.036 251.3)
-
Step 700
700
#536273
oklch(49% 0.033 251.7)
-
Step 800
800
#44505E
oklch(42.6% 0.028 252.4)
-
Step 900
900
#39434D
oklch(37.8% 0.022 248.4)
-
Step 950
950
#22272D
oklch(27% 0.013 253)
#657689 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) | #6F768A | 0.014 |
| Deuteranopia (no green cones) | #6B7389 | 0.011 |
| Tritanopia (no blue cones) | #5B7A7C | 0.030 |
| Achromatopsia (no color) | #747474 | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #657689
#657689
oklch(55.9% 0.036 251.3)
- #82715D
#82715D
oklch(55.9% 0.037 71.5)
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 #657689, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Battleship Gray #6C757D ΔE 0.020
- Grey Blue #647D8E ΔE 0.020
- Battleship Grey #6B7C85 ΔE 0.023
- Metallic Blue #4F738E ΔE 0.031
- Slate Gray #708090 ΔE 0.034
- Stormy Blue #507B9C ΔE 0.036
- Steel Grey #6F828A ΔE 0.039
- Cerulean #457B9D ΔE 0.044
Use #657689 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.