#689EA3
Closest named color: Cadet Blue (#5F9EA0). oklch(66.3% 0.057 203.3), rgb(104, 158, 163).
Aa
Black text reads best on this color (7.00:1).
About this color
#689EA3 is a medium-light, muted teal or cyan. In OKLCH its lightness is 66%, its chroma 0.057 and its hue 203°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Blue (#5F9EA0), ΔE 0.011 away. Black text reads best on it, at 7.00:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (66%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | Cadet Blue (#5F9EA0) |
| Black text | 7.00:1 |
| White text | 2.99:1 |
Values
| HEX | #689EA3 |
| RGB | rgb(104, 158, 163) |
| HSL | hsl(185, 24%, 52%) |
| OKLCH | oklch(66.3% 0.057 203.3) |
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 #689EA3 | 2.99:1 | Fails | Lc -61.9 | Content text, not long reading |
| Black text on #689EA3 | 7.00:1 | AAA | Lc 47.5 | Large or bold text, headings |
| #689EA3 text on white | 2.99:1 | Fails | Lc 56.6 | Large or bold text, headings |
| #689EA3 text on black | 7.00:1 | AAA | Lc -45.2 | 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 500.
-
Step 50
50
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E4EBEC
oklch(93.5% 0.008 207.1)
-
Step 200
200
#CEDCDE
oklch(88.4% 0.015 207.1)
-
Step 300
300
#ADC6C9
oklch(80.9% 0.027 205.4)
-
Step 400
400
#80A9AD
oklch(70.6% 0.045 203.7)
-
Step 500
500 (this color)
#689EA3
oklch(66.3% 0.057 203.3)
-
Step 600
600
#437E84
oklch(55.6% 0.062 204.1)
-
Step 700
700
#346A6F
oklch(49% 0.058 203.4)
-
Step 800
800
#2C575B
oklch(42.8% 0.048 203.4)
-
Step 900
900
#28484A
oklch(37.8% 0.038 200.8)
-
Step 950
950
#182A2C
oklch(27% 0.024 204.7)
#689EA3 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) | #969AA3 | 0.057 |
| Deuteranopia (no green cones) | #8C92A3 | 0.053 |
| Tritanopia (no blue cones) | #51A29F | 0.026 |
| Achromatopsia (no color) | #959595 | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #689EA3
#689EA3
oklch(66.3% 0.057 203.3)
- #B48683
#B48683
oklch(66.4% 0.057 23)
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 #689EA3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Blue #5F9EA0 ΔE 0.011
- Dull Teal #5F9E8F ΔE 0.033
- Greyblue #77A1B5 ΔE 0.033
- Grey Teal #5E9B8A ΔE 0.039
- Bluegrey #85A3B2 ΔE 0.044
- Bluey Grey #89A0B0 ΔE 0.046
- Blue Grey #758DA3 ΔE 0.050
- Sea #3C9992 ΔE 0.052
Use #689EA3 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.