#689CCC
Closest named color: Greyblue (#77A1B5). oklch(67.5% 0.091 247.4), rgb(104, 156, 204).
Aa
Black text reads best on this color (7.21:1).
About this color
#689CCC is a medium-light, moderately saturated blue. In OKLCH its lightness is 68%, its chroma 0.091 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.044 away. Black text reads best on it, at 7.21:1.
| Hue family | Blues |
| Lightness | medium-light (68%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 7.21:1 |
| White text | 2.91:1 |
Values
| HEX | #689CCC |
| RGB | rgb(104, 156, 204) |
| HSL | hsl(209, 50%, 60%) |
| OKLCH | oklch(67.5% 0.091 247.4) |
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 #689CCC | 2.91:1 | Fails | Lc -60.7 | Content text, not long reading |
| Black text on #689CCC | 7.21:1 | AAA | Lc 48.7 | Large or bold text, headings |
| #689CCC text on white | 2.91:1 | Fails | Lc 55.4 | Large or bold text, headings |
| #689CCC text on black | 7.21:1 | AAA | Lc -46.4 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E2EBF5
oklch(93.6% 0.017 250.8)
-
Step 200
200
#C9DCED
oklch(88.6% 0.031 245.1)
-
Step 300
300
#A4C5E4
oklch(81% 0.057 246.9)
-
Step 400
400 (this color)
#689CCC
oklch(67.5% 0.091 247.4)
-
Step 500
500
#4A8FCC
oklch(63.2% 0.116 247.5)
-
Step 600
600
#2878B8
oklch(55.6% 0.125 247.1)
-
Step 700
700
#1A649F
oklch(49% 0.117 247.8)
-
Step 800
800
#195281
oklch(42.7% 0.097 247.7)
-
Step 900
900
#1C4467
oklch(37.6% 0.075 247.8)
-
Step 950
950
#11283D
oklch(26.9% 0.049 248.1)
#689CCC 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) | #889DCE | 0.038 |
| Deuteranopia (no green cones) | #7B93CB | 0.031 |
| Tritanopia (no blue cones) | #39A7AC | 0.077 |
| Achromatopsia (no color) | #979797 | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #689CCC
#689CCC
oklch(67.5% 0.091 247.4)
- #BC8C58
#BC8C58
oklch(67.5% 0.09 67.5)
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 #689CCC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.044
- Faded Blue #658CBB ΔE 0.047
- Silver Lake Blue #778DA9 ΔE 0.057
- Cornflower Blue #6495ED ΔE 0.058
- Cool Gray #8D99AE ΔE 0.058
- Bluegrey #85A3B2 ΔE 0.059
- Bluey Grey #89A0B0 ΔE 0.059
- Blue Grey #758DA3 ΔE 0.064
Use #689CCC 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.