#689CC1
Closest named color: Greyblue (#77A1B5). oklch(67% 0.078 240.4), rgb(104, 156, 193).
Aa
Black text reads best on this color (7.11:1).
About this color
#689CC1 is a medium-light, moderately saturated blue. In OKLCH its lightness is 67%, its chroma 0.078 and its hue 240°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.031 away. Black text reads best on it, at 7.11:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 7.11:1 |
| White text | 2.95:1 |
Values
| HEX | #689CC1 |
| RGB | rgb(104, 156, 193) |
| HSL | hsl(205, 42%, 58%) |
| OKLCH | oklch(67% 0.078 240.4) |
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 #689CC1 | 2.95:1 | Fails | Lc -61.3 | Content text, not long reading |
| Black text on #689CC1 | 7.11:1 | AAA | Lc 48.1 | Large or bold text, headings |
| #689CC1 text on white | 2.95:1 | Fails | Lc 55.9 | Large or bold text, headings |
| #689CC1 text on black | 7.11:1 | AAA | Lc -45.8 | 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
#CADCEA
oklch(88.5% 0.027 241.2)
-
Step 300
300
#A5C5DE
oklch(80.8% 0.049 241.8)
-
Step 400
400 (this color)
#689CC1
oklch(67% 0.078 240.4)
-
Step 500
500
#4B91C0
oklch(63.1% 0.1 240.3)
-
Step 600
600
#2A7AAC
oklch(55.5% 0.109 240.6)
-
Step 700
700
#1B6794
oklch(49.1% 0.101 240.3)
-
Step 800
800
#1A5478
oklch(42.7% 0.084 240.5)
-
Step 900
900
#1D4661
oklch(37.8% 0.065 240.4)
-
Step 950
950
#122939
oklch(27% 0.042 241)
#689CC1 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) | #8C9CC3 | 0.044 |
| Deuteranopia (no green cones) | #8092C0 | 0.037 |
| Tritanopia (no blue cones) | #41A5A8 | 0.063 |
| Achromatopsia (no color) | #969696 | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #689CC1
#689CC1
oklch(67% 0.078 240.4)
- #B98A64
#B98A64
oklch(67% 0.078 59.9)
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 #689CC1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.031
- Faded Blue #658CBB ΔE 0.045
- Silver Lake Blue #778DA9 ΔE 0.047
- Bluegrey #85A3B2 ΔE 0.048
- Bluey Grey #89A0B0 ΔE 0.049
- Cool Gray #8D99AE ΔE 0.049
- Blue Grey #758DA3 ΔE 0.052
- Cadet Blue #5F9EA0 ΔE 0.054
Use #689CC1 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.