#678799
Closest named color: Steel (#738595). oklch(60.6% 0.045 233.1), rgb(103, 135, 153).
Aa
Black text reads best on this color (5.50:1).
About this color
#678799 is a medium-dark, muted blue. In OKLCH its lightness is 61%, its chroma 0.045 and its hue 233°. 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 5.50:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | muted (0.045) |
| Temperature | cool |
| Nearest name | Steel (#738595) |
| Black text | 5.50:1 |
| White text | 3.81:1 |
Values
| HEX | #678799 |
| RGB | rgb(103, 135, 153) |
| HSL | hsl(202, 20%, 50%) |
| OKLCH | oklch(60.6% 0.045 233.1) |
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 #678799 | 3.81:1 | AA large text | Lc -71.2 | Content text, not long reading |
| Black text on #678799 | 5.50:1 | AA | Lc 38.4 | Non-text elements, placeholder text |
| #678799 text on white | 3.81:1 | AA large text | Lc 65.7 | Content text, not long reading |
| #678799 text on black | 5.50:1 | AA | Lc -36.0 | 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
#D2DBE0
oklch(88.6% 0.012 231.7)
-
Step 300
300
#B3C3CD
oklch(80.8% 0.023 235.1)
-
Step 400
400
#8BA5B3
oklch(70.7% 0.035 231.5)
-
Step 500
500 (this color)
#678799
oklch(60.6% 0.045 233.1)
-
Step 600
600
#56798C
oklch(55.7% 0.049 232.5)
-
Step 700
700
#466577
oklch(49% 0.046 234.5)
-
Step 800
800
#3A5361
oklch(42.8% 0.038 233.4)
-
Step 900
900
#32444F
oklch(37.6% 0.03 235.4)
-
Step 950
950
#1D282E
oklch(26.9% 0.019 232.2)
#678799 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) | #7E869A | 0.030 |
| Deuteranopia (no green cones) | #778099 | 0.027 |
| Tritanopia (no blue cones) | #578C8D | 0.033 |
| Achromatopsia (no color) | #838383 | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #678799
#678799
oklch(60.6% 0.045 233.1)
- #987B69
#987B69
oklch(60.6% 0.045 53.5)
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 #678799, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Steel #738595 ΔE 0.016
- Light Slate Gray #778899 ΔE 0.021
- Slate Gray #708090 ΔE 0.022
- Steel Grey #6F828A ΔE 0.024
- Blue Grey #758DA3 ΔE 0.029
- Grey Blue #647D8E ΔE 0.030
- Dusty Blue #5A86AD ΔE 0.034
- Silver Lake Blue #778DA9 ΔE 0.036
Use #678799 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.