#689FC4
Closest named color: Greyblue (#77A1B5). oklch(67.9% 0.08 239), rgb(104, 159, 196).
Aa
Black text reads best on this color (7.34:1).
About this color
#689FC4 is a medium-light, moderately saturated blue. In OKLCH its lightness is 68%, its chroma 0.080 and its hue 239°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.029 away. Black text reads best on it, at 7.34:1.
| Hue family | Blues |
| Lightness | medium-light (68%) |
| Chroma | moderately saturated (0.080) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 7.34:1 |
| White text | 2.85:1 |
Values
| HEX | #689FC4 |
| RGB | rgb(104, 159, 196) |
| HSL | hsl(204, 44%, 59%) |
| OKLCH | oklch(67.9% 0.08 239) |
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 #689FC4 | 2.85:1 | Fails | Lc -59.9 | Large or bold text, headings |
| Black text on #689FC4 | 7.34:1 | AAA | Lc 49.4 | Large or bold text, headings |
| #689FC4 text on white | 2.85:1 | Fails | Lc 54.6 | Large or bold text, headings |
| #689FC4 text on black | 7.34:1 | AAA | Lc -47.2 | Large or bold text, headings |
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 400.
-
Step 50
50
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E2EBF3
oklch(93.6% 0.015 244.7)
-
Step 200
200
#C9DCEA
oklch(88.5% 0.028 239.7)
-
Step 300
300
#A4C6DE
oklch(81% 0.05 239)
-
Step 400
400 (this color)
#689FC4
oklch(67.9% 0.08 239)
-
Step 500
500
#4792C0
oklch(63.2% 0.102 238.2)
-
Step 600
600
#237BAD
oklch(55.6% 0.111 239.1)
-
Step 700
700
#146794
oklch(49% 0.103 239.2)
-
Step 800
800
#155578
oklch(42.8% 0.085 238.1)
-
Step 900
900
#1A4661
oklch(37.7% 0.067 239.1)
-
Step 950
950
#112939
oklch(27% 0.042 240.1)
#689FC4 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) | #8F9EC6 | 0.047 |
| Deuteranopia (no green cones) | #8294C3 | 0.040 |
| Tritanopia (no blue cones) | #3EA8AB | 0.064 |
| Achromatopsia (no color) | #999999 | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #689FC4
#689FC4
oklch(67.9% 0.08 239)
- #BD8C66
#BD8C66
oklch(67.9% 0.079 58.7)
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 #689FC4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.029
- Bluegrey #85A3B2 ΔE 0.045
- Bluey Grey #89A0B0 ΔE 0.047
- Cool Gray #8D99AE ΔE 0.050
- Faded Blue #658CBB ΔE 0.053
- Silver Lake Blue #778DA9 ΔE 0.055
- Cadet Blue #5F9EA0 ΔE 0.056
- Blue Grey #758DA3 ΔE 0.059
Use #689FC4 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.