#668697
Closest named color: Steel (#738595). oklch(60.2% 0.045 231.6), rgb(102, 134, 151).
Aa
Black text reads best on this color (5.42:1).
About this color
#668697 is a medium-dark, muted blue. In OKLCH its lightness is 60%, its chroma 0.045 and its hue 232°. Its hue sits on the cool side of the wheel. The nearest named color is Steel (#738595), ΔE 0.016 away. Black text reads best on it, at 5.42:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | muted (0.045) |
| Temperature | cool |
| Nearest name | Steel (#738595) |
| Black text | 5.42:1 |
| White text | 3.87:1 |
Values
| HEX | #668697 |
| RGB | rgb(102, 134, 151) |
| HSL | hsl(201, 19%, 50%) |
| OKLCH | oklch(60.2% 0.045 231.6) |
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 #668697 | 3.87:1 | AA large text | Lc -71.7 | Content text, not long reading |
| Black text on #668697 | 5.42:1 | AA | Lc 37.9 | Non-text elements, placeholder text |
| #668697 text on white | 3.87:1 | AA large text | Lc 66.2 | Content text, not long reading |
| #668697 text on black | 5.42:1 | AA | Lc -35.5 | 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 500.
-
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
#D2DBE0
oklch(88.6% 0.012 231.7)
-
Step 300
300
#B3C3CC
oklch(80.8% 0.022 232.2)
-
Step 400
400
#8CA5B3
oklch(70.7% 0.035 232.5)
-
Step 500
500 (this color)
#668697
oklch(60.2% 0.045 231.6)
-
Step 600
600
#56798B
oklch(55.6% 0.049 231.1)
-
Step 700
700
#466676
oklch(49.2% 0.045 230.5)
-
Step 800
800
#3A5360
oklch(42.7% 0.037 231.4)
-
Step 900
900
#32454E
oklch(37.8% 0.029 228.7)
-
Step 950
950
#1D282E
oklch(26.9% 0.019 232.2)
#668697 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) | #7E8598 | 0.032 |
| Deuteranopia (no green cones) | #777F97 | 0.028 |
| Tritanopia (no blue cones) | #568B8B | 0.033 |
| Achromatopsia (no color) | #818181 | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #668697
#668697
oklch(60.2% 0.045 231.6)
- #977A69
#977A69
oklch(60.3% 0.044 52)
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 #668697, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Steel #738595 ΔE 0.016
- Slate Gray #708090 ΔE 0.020
- Steel Grey #6F828A ΔE 0.021
- Light Slate Gray #778899 ΔE 0.024
- Grey Blue #647D8E ΔE 0.027
- Blue Grey #758DA3 ΔE 0.033
- Battleship Grey #6B7C85 ΔE 0.033
- Dusty Blue #5A86AD ΔE 0.036
Use #668697 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.