#689ED3
Closest named color: Greyblue (#77A1B5). oklch(68.3% 0.097 249), rgb(104, 158, 211).
Aa
Black text reads best on this color (7.41:1).
About this color
#689ED3 is a medium-light, moderately saturated blue. In OKLCH its lightness is 68%, its chroma 0.097 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.050 away. Black text reads best on it, at 7.41:1.
| Hue family | Blues |
| Lightness | medium-light (68%) |
| Chroma | moderately saturated (0.097) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 7.41:1 |
| White text | 2.83:1 |
Values
| HEX | #689ED3 |
| RGB | rgb(104, 158, 211) |
| HSL | hsl(210, 55%, 62%) |
| OKLCH | oklch(68.3% 0.097 249) |
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 #689ED3 | 2.83:1 | Fails | Lc -59.5 | Large or bold text, headings |
| Black text on #689ED3 | 7.41:1 | AAA | Lc 49.8 | Large or bold text, headings |
| #689ED3 text on white | 2.83:1 | Fails | Lc 54.2 | Large or bold text, headings |
| #689ED3 text on black | 7.41:1 | AAA | Lc -47.6 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E1EBF5
oklch(93.5% 0.017 248)
-
Step 200
200
#C9DCEF
oklch(88.6% 0.033 248.2)
-
Step 300
300
#A3C5E7
oklch(81% 0.061 248.6)
-
Step 400
400 (this color)
#689ED3
oklch(68.3% 0.097 249)
-
Step 500
500
#468ED1
oklch(63.1% 0.125 249)
-
Step 600
600
#2377BE
oklch(55.6% 0.135 248.9)
-
Step 700
700
#1464A4
oklch(49.2% 0.125 248.8)
-
Step 800
800
#155285
oklch(42.8% 0.104 248.7)
-
Step 900
900
#19446B
oklch(37.7% 0.082 249.1)
-
Step 950
950
#10283E
oklch(27% 0.051 248.4)
#689ED3 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) | #88A0D5 | 0.038 |
| Deuteranopia (no green cones) | #7B95D2 | 0.030 |
| Tritanopia (no blue cones) | #31AAB0 | 0.084 |
| Achromatopsia (no color) | #9A9A9A | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #689ED3
#689ED3
oklch(68.3% 0.097 249)
- #C08E53
#C08E53
oklch(68.3% 0.097 69.5)
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 #689ED3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.050
- Cornflower Blue #6495ED ΔE 0.051
- Faded Blue #658CBB ΔE 0.055
- Chefchaouen Blue #4895EF ΔE 0.061
- Bluegrey #85A3B2 ΔE 0.063
- Bluey Grey #89A0B0 ΔE 0.064
- Cool Gray #8D99AE ΔE 0.065
- Silver Lake Blue #778DA9 ΔE 0.067
Use #689ED3 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.