#688497
Closest named color: Steel (#738595). oklch(59.9% 0.043 238.1), rgb(104, 132, 151).
Aa
Black text reads best on this color (5.33:1).
About this color
#688497 is a medium-dark, muted blue. In OKLCH its lightness is 60%, its chroma 0.043 and its hue 238°. Its hue sits on the cool side of the wheel. The nearest named color is Steel (#738595), ΔE 0.015 away. Black text reads best on it, at 5.33:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | muted (0.043) |
| Temperature | cool |
| Nearest name | Steel (#738595) |
| Black text | 5.33:1 |
| White text | 3.93:1 |
Values
| HEX | #688497 |
| RGB | rgb(104, 132, 151) |
| HSL | hsl(204, 18%, 50%) |
| OKLCH | oklch(59.9% 0.043 238.1) |
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 #688497 | 3.93:1 | AA large text | Lc -72.2 | Content text, not long reading |
| Black text on #688497 | 5.33:1 | AA | Lc 37.3 | Non-text elements, placeholder text |
| #688497 text on white | 3.93:1 | AA large text | Lc 66.7 | Content text, not long reading |
| #688497 text on black | 5.33:1 | AA | Lc -34.9 | 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
#E6EAED
oklch(93.5% 0.006 239.8)
-
Step 200
200
#D2DAE0
oklch(88.4% 0.012 239.9)
-
Step 300
300
#B5C3CD
oklch(80.9% 0.021 238.7)
-
Step 400
400
#8EA4B4
oklch(70.7% 0.034 239.6)
-
Step 500
500 (this color)
#688497
oklch(59.9% 0.043 238.1)
-
Step 600
600
#59788C
oklch(55.6% 0.047 237)
-
Step 700
700
#496577
oklch(49.2% 0.044 237)
-
Step 800
800
#3C5261
oklch(42.7% 0.037 238.5)
-
Step 900
900
#34444F
oklch(37.7% 0.028 238.5)
-
Step 950
950
#1E282E
oklch(27% 0.018 234.7)
#688497 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) | #7C8398 | 0.027 |
| Deuteranopia (no green cones) | #757E97 | 0.023 |
| Tritanopia (no blue cones) | #59898A | 0.034 |
| Achromatopsia (no color) | #808080 | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #688497
#688497
oklch(59.9% 0.043 238.1)
- #947A67
#947A67
oklch(59.9% 0.043 58)
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 #688497, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Steel #738595 ΔE 0.015
- Slate Gray #708090 ΔE 0.015
- Steel Grey #6F828A ΔE 0.020
- Grey Blue #647D8E ΔE 0.023
- Light Slate Gray #778899 ΔE 0.024
- Battleship Grey #6B7C85 ΔE 0.030
- Lavender Gray #7E7F9A ΔE 0.033
- Blue Grey #758DA3 ΔE 0.034
Use #688497 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.