#689CBE
Closest named color: Greyblue (#77A1B5). oklch(66.9% 0.075 238.1), rgb(104, 156, 190).
Aa
Black text reads best on this color (7.08:1).
About this color
#689CBE is a medium-light, moderately saturated blue. In OKLCH its lightness is 67%, its chroma 0.075 and its hue 238°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.028 away. Black text reads best on it, at 7.08:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 7.08:1 |
| White text | 2.96:1 |
Values
| HEX | #689CBE |
| RGB | rgb(104, 156, 190) |
| HSL | hsl(204, 40%, 58%) |
| OKLCH | oklch(66.9% 0.075 238.1) |
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 #689CBE | 2.96:1 | Fails | Lc -61.4 | Content text, not long reading |
| Black text on #689CBE | 7.08:1 | AAA | Lc 48.0 | Large or bold text, headings |
| #689CBE text on white | 2.96:1 | Fails | Lc 56.1 | Large or bold text, headings |
| #689CBE text on black | 7.08:1 | AAA | Lc -45.7 | 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
#E2EBF2
oklch(93.5% 0.014 241)
-
Step 200
200
#CADCE9
oklch(88.5% 0.026 239.1)
-
Step 300
300
#A5C6DC
oklch(81% 0.047 237.4)
-
Step 400
400 (this color)
#689CBE
oklch(66.9% 0.075 238.1)
-
Step 500
500
#4C92BD
oklch(63.2% 0.096 237.9)
-
Step 600
600
#2B7BA9
oklch(55.6% 0.104 238.3)
-
Step 700
700
#1C6891
oklch(49.2% 0.097 237.7)
-
Step 800
800
#1A5576
oklch(42.8% 0.081 237.8)
-
Step 900
900
#1D465F
oklch(37.7% 0.063 238.4)
-
Step 950
950
#122938
oklch(27% 0.04 239.2)
#689CBE 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) | #8D9BC0 | 0.045 |
| Deuteranopia (no green cones) | #8192BD | 0.038 |
| Tritanopia (no blue cones) | #43A5A7 | 0.060 |
| Achromatopsia (no color) | #969696 | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #689CBE
#689CBE
oklch(66.9% 0.075 238.1)
- #B88A67
#B88A67
oklch(66.9% 0.074 58.3)
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 #689CBE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.028
- Silver Lake Blue #778DA9 ΔE 0.045
- Faded Blue #658CBB ΔE 0.045
- Bluegrey #85A3B2 ΔE 0.046
- Bluey Grey #89A0B0 ΔE 0.047
- Cool Gray #8D99AE ΔE 0.047
- Blue Grey #758DA3 ΔE 0.049
- Cadet Blue #5F9EA0 ΔE 0.050
Use #689CBE 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.