#688B97
Closest named color: Steel (#738595). oklch(61.5% 0.043 221), rgb(104, 139, 151).
Aa
Black text reads best on this color (5.72:1).
About this color
#688B97 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 61%, its chroma 0.043 and its hue 221°. Its hue sits on the cool side of the wheel. The nearest named color is Steel (#738595), ΔE 0.020 away. Black text reads best on it, at 5.72:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (61%) |
| Chroma | muted (0.043) |
| Temperature | cool |
| Nearest name | Steel (#738595) |
| Black text | 5.72:1 |
| White text | 3.66:1 |
Values
| HEX | #688B97 |
| RGB | rgb(104, 139, 151) |
| HSL | hsl(195, 18%, 50%) |
| OKLCH | oklch(61.5% 0.043 221) |
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 #688B97 | 3.66:1 | AA large text | Lc -69.7 | Content text, not long reading |
| Black text on #688B97 | 5.72:1 | AA | Lc 39.9 | Non-text elements, placeholder text |
| #688B97 text on white | 3.66:1 | AA large text | Lc 64.2 | Content text, not long reading |
| #688B97 text on black | 5.72:1 | AA | Lc -37.5 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E6EBED
oklch(93.7% 0.006 223.5)
-
Step 200
200
#D1DBDF
oklch(88.5% 0.012 223.5)
-
Step 300
300
#B3C4CA
oklch(80.9% 0.02 220.9)
-
Step 400
400
#8AA6B0
oklch(70.7% 0.034 221.5)
-
Step 500
500 (this color)
#688B97
oklch(61.5% 0.043 221)
-
Step 600
600
#547A87
oklch(55.6% 0.047 221.3)
-
Step 700
700
#446772
oklch(49.2% 0.044 219.6)
-
Step 800
800
#38545D
oklch(42.7% 0.037 220)
-
Step 900
900
#31454C
oklch(37.6% 0.028 221.5)
-
Step 950
950
#1D292D
oklch(27.2% 0.018 220.3)
#688B97 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) | #848998 | 0.037 |
| Deuteranopia (no green cones) | #7C8397 | 0.033 |
| Tritanopia (no blue cones) | #588F8F | 0.027 |
| Achromatopsia (no color) | #858585 | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #688B97
#688B97
oklch(61.5% 0.043 221)
- #9C7C71
#9C7C71
oklch(61.4% 0.043 39.8)
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 #688B97, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Steel #738595 ΔE 0.020
- Light Slate Gray #778899 ΔE 0.021
- Blue Grey #758DA3 ΔE 0.026
- Steel Grey #6F828A ΔE 0.027
- Slate Gray #708090 ΔE 0.031
- Silver Lake Blue #778DA9 ΔE 0.035
- Grey Blue #647D8E ΔE 0.041
- Dusty Blue #5A86AD ΔE 0.044
Use #688B97 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.