#2F689E
Closest named color: Peacock Blue (#016795). oklch(50.5% 0.105 249.6), rgb(47, 104, 158).
Aa
White text reads best on this color (5.84:1).
About this color
#2F689E is a medium-dark, moderately saturated blue. In OKLCH its lightness is 51%, its chroma 0.105 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Peacock Blue (#016795), ΔE 0.028 away. White text reads best on it, at 5.84:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.105) |
| Temperature | cool |
| Nearest name | Peacock Blue (#016795) |
| Black text | 3.59:1 |
| White text | 5.84:1 |
Values
| HEX | #2F689E |
| RGB | rgb(47, 104, 158) |
| HSL | hsl(209, 54%, 40%) |
| OKLCH | oklch(50.5% 0.105 249.6) |
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 #2F689E | 5.84:1 | AA | Lc -84.2 | Fine for body text |
| Black text on #2F689E | 3.59:1 | AA large text | Lc 25.1 | Dividers and decoration only |
| #2F689E text on white | 5.84:1 | AA | Lc 79.0 | Fine for body text |
| #2F689E text on black | 3.59:1 | AA large text | Lc -22.8 | Dividers and decoration only |
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 700.
-
Step 50
50
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EBF4
oklch(93.7% 0.015 251.2)
-
Step 200
200
#CCDBEC
oklch(88.5% 0.029 251.5)
-
Step 300
300
#A8C4E1
oklch(80.9% 0.051 249.4)
-
Step 400
400
#79A5D2
oklch(70.7% 0.082 249.6)
-
Step 500
500
#558EC6
oklch(63.1% 0.104 249.4)
-
Step 600
600
#3977B2
oklch(55.6% 0.112 249.5)
-
Step 700
700 (this color)
#2F689E
oklch(50.5% 0.105 249.6)
-
Step 800
800
#25527C
oklch(42.8% 0.086 249.1)
-
Step 900
900
#234464
oklch(37.7% 0.068 249.4)
-
Step 950
950
#15283B
oklch(27.1% 0.044 249.7)
#2F689E 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) | #506BA0 | 0.037 |
| Deuteranopia (no green cones) | #40609D | 0.026 |
| Tritanopia (no blue cones) | #00757B | 0.081 |
| Achromatopsia (no color) | #656565 | 0.105 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F689E
#2F689E
oklch(50.5% 0.105 249.6)
- #8B580D
#8B580D
oklch(50.6% 0.105 69.1)
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 #2F689E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Peacock Blue #016795 ΔE 0.028
- Denim #3B638C ΔE 0.030
- Muted Blue #3B719F ΔE 0.030
- Ocean Blue #03719C ΔE 0.031
- French Blue #436BAD ΔE 0.033
- Mid Blue #276AB3 ΔE 0.033
- Dusky Blue #475F94 ΔE 0.033
- Flat Blue #3C73A8 ΔE 0.037
Use #2F689E 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.