#66889A
Closest named color: Steel (#738595). oklch(60.8% 0.047 231.6), rgb(102, 136, 154).
Aa
Black text reads best on this color (5.55:1).
About this color
#66889A is a medium-dark, muted blue. In OKLCH its lightness is 61%, its chroma 0.047 and its hue 232°. Its hue sits on the cool side of the wheel. The nearest named color is Steel (#738595), ΔE 0.017 away. Black text reads best on it, at 5.55:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | muted (0.047) |
| Temperature | cool |
| Nearest name | Steel (#738595) |
| Black text | 5.55:1 |
| White text | 3.78:1 |
Values
| HEX | #66889A |
| RGB | rgb(102, 136, 154) |
| HSL | hsl(201, 20%, 50%) |
| OKLCH | oklch(60.8% 0.047 231.6) |
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 #66889A | 3.78:1 | AA large text | Lc -70.8 | Content text, not long reading |
| Black text on #66889A | 5.55:1 | AA | Lc 38.8 | Non-text elements, placeholder text |
| #66889A text on white | 3.78:1 | AA large text | Lc 65.3 | Content text, not long reading |
| #66889A text on black | 5.55:1 | AA | Lc -36.3 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E6EBED
oklch(93.7% 0.006 223.5)
-
Step 200
200
#D1DBE0
oklch(88.5% 0.013 228.9)
-
Step 300
300
#B3C4CD
oklch(81% 0.023 230.6)
-
Step 400
400
#8AA5B4
oklch(70.6% 0.037 232.3)
-
Step 500
500 (this color)
#66889A
oklch(60.8% 0.047 231.6)
-
Step 600
600
#54798C
oklch(55.6% 0.051 231.2)
-
Step 700
700
#446677
oklch(49.1% 0.048 230.6)
-
Step 800
800
#395361
oklch(42.7% 0.039 232.4)
-
Step 900
900
#31454F
oklch(37.8% 0.03 230.2)
-
Step 950
950
#1D282E
oklch(26.9% 0.019 232.2)
#66889A 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) | #7F879B | 0.033 |
| Deuteranopia (no green cones) | #78819A | 0.029 |
| Tritanopia (no blue cones) | #558D8E | 0.034 |
| Achromatopsia (no color) | #838383 | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66889A
#66889A
oklch(60.8% 0.047 231.6)
- #9A7B69
#9A7B69
oklch(60.8% 0.047 51.7)
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 #66889A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Steel #738595 ΔE 0.017
- Light Slate Gray #778899 ΔE 0.022
- Slate Gray #708090 ΔE 0.025
- Steel Grey #6F828A ΔE 0.026
- Blue Grey #758DA3 ΔE 0.028
- Grey Blue #647D8E ΔE 0.033
- Dusty Blue #5A86AD ΔE 0.034
- Silver Lake Blue #778DA9 ΔE 0.035
Use #66889A 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.