#689FBC
Closest named color: Greyblue (#77A1B5). oklch(67.5% 0.072 232.3), rgb(104, 159, 188).
Aa
Black text reads best on this color (7.27:1).
About this color
#689FBC is a medium-light, moderately saturated blue. In OKLCH its lightness is 68%, its chroma 0.072 and its hue 232°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.021 away. Black text reads best on it, at 7.27:1.
| Hue family | Blues |
| Lightness | medium-light (68%) |
| Chroma | moderately saturated (0.072) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 7.27:1 |
| White text | 2.88:1 |
Values
| HEX | #689FBC |
| RGB | rgb(104, 159, 188) |
| HSL | hsl(201, 39%, 57%) |
| OKLCH | oklch(67.5% 0.072 232.3) |
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 #689FBC | 2.88:1 | Fails | Lc -60.4 | Content text, not long reading |
| Black text on #689FBC | 7.27:1 | AAA | Lc 49.0 | Large or bold text, headings |
| #689FBC text on white | 2.88:1 | Fails | Lc 55.0 | Large or bold text, headings |
| #689FBC text on black | 7.27:1 | AAA | Lc -46.8 | 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
#E2ECF1
oklch(93.7% 0.013 228.9)
-
Step 200
200
#CADCE7
oklch(88.4% 0.025 234.5)
-
Step 300
300
#A4C6D9
oklch(80.8% 0.045 232.5)
-
Step 400
400 (this color)
#689FBC
oklch(67.5% 0.072 232.3)
-
Step 500
500
#4993B8
oklch(63.1% 0.092 232.6)
-
Step 600
600
#257DA4
oklch(55.7% 0.1 232.2)
-
Step 700
700
#16698C
oklch(49.1% 0.093 232.2)
-
Step 800
800
#165672
oklch(42.8% 0.077 232)
-
Step 900
900
#1B475C
oklch(37.7% 0.06 232.2)
-
Step 950
950
#112A36
oklch(27.1% 0.038 231.3)
#689FBC 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) | #919DBD | 0.049 |
| Deuteranopia (no green cones) | #8594BC | 0.043 |
| Tritanopia (no blue cones) | #44A7A8 | 0.054 |
| Achromatopsia (no color) | #989898 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #689FBC
#689FBC
oklch(67.5% 0.072 232.3)
- #BB8B6D
#BB8B6D
oklch(67.6% 0.072 53.1)
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 #689FBC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.021
- Bluegrey #85A3B2 ΔE 0.040
- Bluey Grey #89A0B0 ΔE 0.042
- Cadet Blue #5F9EA0 ΔE 0.044
- Cool Gray #8D99AE ΔE 0.046
- Silver Lake Blue #778DA9 ΔE 0.051
- Blue Grey #758DA3 ΔE 0.053
- Faded Blue #658CBB ΔE 0.055
Use #689FBC 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.